English edition 26/757 E1

English edition 26/757 E1
SAIA-Burgess Electronics Ltd.
Bahnhofstrasse 18
CH-3280 Murten (Switzerland)
http;//www.saia-burgess.com
BA: Electronic Controllers
Telephone
Telefax
026 / 672 72 72
026 / 672 74 99
________________________________________________________________________________________________________________
SAIA-Burgess Companies
Switzerland
SAIA-Burgess Electronics AG
Freiburgstrasse 33
CH-3280 Murten
026 672 77 77, Fax 026 670 19 83
France
SAIA-Burgess Electronics Sàrl.
10, Bld. Louise Michel
F-92230 Gennevilliers
01 46 88 07 70, Fax 01 46 88 07 99
Germany
SAIA-Burgess Electronics GmbH
Daimlerstrasse 1k
D-63303 Dreieich
06103 89 060, Fax 06103 89 06 66
Nederlands
SAIA-Burgess Electronics B.V.
Hanzeweg 12c
NL-2803 MC Gouda
0182 54 31 54, Fax 0182 54 31 51
Austria
SAIA-Burgess Electronics Ges.m.b.H.
Schallmooser Hauptstrasse 38
A-5020 Salzburg
0662 88 49 10, Fax 0662 88 49 10 11
Belgium
SAIA-Burgess Electronics Belgium
Avenue Roi Albert 1er, 50
B-1780 Wemmel
02 456 06 20, Fax 02 460 50 44
Italy
SAIA-Burgess Electronics S.r.l.
Via Cadamosto 3
I-20094 Corsico MI
02 48 69 21, Fax 02 48 60 06 92
Hungary
SAIA-Burgess Electronics Automation Kft.
Liget utca 1.
H-2040 Budaörs
23 501 170, Fax 23 501 180
Representatives
Great Britain
Canham Controls Ltd.
25 Fenlake Business Centre, Fengate
Peterborough PE1 5BQ UK
01733 89 44 89, Fax 01733 89 44 88
Portugal
INFOCONTROL Electronica e Automatismo LDA.
Praceta Cesário Verde, No 10 s/cv, Massamá
P-2745 Queluz
21 430 08 24, Fax 21 430 08 04
Denmark
Malthe Winje Automation AB
Hovedgaden 60-62
DK-3630 Jaegerpris
70 20 52 01, Fax 70 20 52 02
Spain
Tecnosistemas Medioambientales, S.L.
Poligono Industrial El Cabril, 9
E-28864 Ajalvir, Madrid
91 884 47 93, Fax 91 884 40 72
Norway
Malthe Winje Automasjon AS
Haukelivn 48
N-1415 Oppegård
66 99 61 00, Fax 66 99 61 01
Czech
Republic
ICS Industrie Control Service, s.r.o.
Modranská 43
CZ-14700 Praha 4
2 44 06 22 79, Fax 2 44 46 08 57
Sweden
Malthe Winje Automation AB
Truckvägen 14A
S-194 52 Upplands Våsby
08 795 59 10, Fax 08 795 59 20
Poland
SABUR Ltd.
ul. Druzynowa 3A
PL-02-590 Warszawa
22 844 63 70, Fax 22 844 75 20
Suomi/
Finland
ENERGEL OY
Atomitie 1
FIN-00370 Helsinki
09 586 2066, Fax 09 586 2046
Australia
Siemens Building Technologies Pty. Ltd.
Landis & Staefa Division
411 Ferntree Gully Road
AUS-Mount Waverley, 3149 Victoria
3 9544 2322, Fax 3 9550 9260
Argentina
MURTEN S.r.l.
Av. del Libertador 184, 4° “A”
RA-1001 Buenos Aires
054 11 4312 0172, Fax 054 11 4312 0172
After sales service
USA
SAIA-Burgess Electronics Inc.
1335 Barclay Boulevard
Buffalo Grove, IL 60089, USA
847 215 96 00, Fax 847 215 96 06
________________________________________________________________________________________________________________
Issue : 01.02.2000
Subjet to change without notice
 SAIA-Burgess Electronics Ltd.
HARDWARE
PCD1 and PCD2 - Series xx7
SAIA® Process Control Devices
SAIA-Burgess Electronics Ltd. 1998 all rights reserved
Edition 26/757 E1 - 03.98
Subject to technical changes
 SAIA-Burgess Electronics Ltd.
Updates
Manual: Hardware - PCD1 and PCD2 -Series xx7 - Edition E1
Date
Chapter
Page
Description
 SAIA-Burgess Electronics Ltd.
SAIA PCD Serie xx7
Contents
Contents
Page
1.
System structure
1.1
1.2
Compatibility PCD1 - PCD2
System information of the PCD1 and PCD2
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.2.6
1.3
Base unit PCD1.M137
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.4
Fundamental differences between
the PCD1 and PCD2
Technical data of the PCD1.M137
Technical data of the PCD2.M127
Technical data of the PCD2.M227
General technical data of the PCD1 and PCD2
Software resources
1-9
1-9
1-10
1-11
1-12
1-16
Base units PCD2.M127 and PCD2.M227 as well as
PCD2.C107 and PCD2.C157
1-17
Summary
Assembly and dimensions
Architecture of the PCD2 main board
Layout of the PCD2 main board
Addressing I/O modules
2.
Power supply and connection plan
2.1
External power supply
2.1.1
2.1.2
2.1.3
Application: simple and small installations
Application: small to medium installations
Application: medium to large installations
Grounding and connection layout
Internal power supply
2.3.1
2.3.2
2.3.3
26/757 E1 (Dx7-00-E.DOC)
1-3
1-4
1-5
1-6
1-7
1-8
Summary
Assembly and dimensions
Architecture of the PCD1 main board
Layout of the PCD1 main board
Addressing I/O modules
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
2.2
2.3
1-1
1-3
Schematic diagram of the PCD1
Schematic diagram of the PCD2
Power requirements of PCD2 modules
 SAIA-Burgess Electronics Ltd.
1-17
1-19
1-21
1-22
1-25
2-1
2-1
2-1
2-2
2-3
2-4
2-4
2-4
2-5
Page 1
SAIA PCD Serie xx7
Contents
Page
3.
Specific system functions
3.1
Serial communication
3-2
3.1.1 Read serial interface SFC 240 "RCV_COM"
3.1.2 Transmit serial interface SFC 241 "COM_SEND"
3.1.3 Read status of serial interface
SFC 242 "COM_STAT"
3.1.4 Initialize serial interface SFC 243 "COM_INIT"
3.2
3-3
3-4
3-5
3-6
Interrupt inputs / fast counters
3-7
3.2.1 Block / enable interrupt inputs SFC 250 "INP:INT"
3.2.2 Configure / start counter SFC 251 "INITCNTR"
3.2.3 Read counter status SFC 252 "READCNTR"
3.3
3-8
3-9
3-10
SSI interface
3-11
3.3.1 Read SSI interface SFC 253 "READ_SSI"
3.3.2 Converting Gray code to binary
SFC 254 "GRAY2BIN"
4.
The serial communications interfaces (F-Modules)
4.1
4.2
4.3
Overview of the serial communications interfaces
The MPI interface no. 0
Interface no. 1 with modules PCD7.F1..
4.3.1
4.3.2
4.3.3
4.3.4
4.4
4.5
4.6
Page 2
3-11
3-12
4-2
4-3
4-4
RS 422/485 with module PCD7.F110
RS 232 with module PCD7.F120
20 mA current loop with module PCD7.F130
RS485 electrically isolated with mod. PCD7.F150
Interface no. 2 RS232 with modules PCD2.F5..
Interface no. 3 RS422/485 with modules PCD2.F5..
Definitions for serial interfaces
 SAIA-Burgess Electronics Ltd.
(Dx7-00-E.DOC)
4-4
4-6
4-7
4-9
4-10
4-11
4-13
26/757 E1
SAIA PCD Serie xx7
Contents
5.
Digital input/output modules
5.1
PCD2.E110/111
Digital input module, electrically connected
PCD2.E500
Digital input module for voltages from 115 to 230 VAC
PCD2.E610/611
Digital input module, with electrical isolation
PCD2.A200
Digital output module with 4 relay contacts
(with contact protection)
PCD2.A220
Digital output module with 6 relay contacts
(without contact protection)
PCD2.A250
Digital output module with 8 relay contacts
(without contact protection)
PCD2.A300
Digital output module, 2A, electrically connected
PCD2.A400
Digital output module, 0.5A, electrically connected
PCD2.A410
Digital output module, 0.5A, with electrical isolation
PCD2.B100
Digital input/output module, electrically connected
PCD2.G400 - not foreseen for xx7 series
Interrupt inputs
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.12.1
5.12.2
Interrupt inputs of the PCD1.M137
Interrupt inputs of the PCD2.M127 and M227
6.
Analogue input/output modules
6.1
PCD2.W10.
Analogue input module, 4 channels, 12 bit resolution
PCD2.W11.
Analogue input module for resistance thermometer
Pt/Ni100, 1000, 4 channels, each with 12 bit resolution
PCD2.W2..
Analogue input module, 8 channels, 10 bit resolution
PCD2.W4..
Analogue output module, 4 channels, 8 bit resolution
PCD2.W5..
Analogue input/output module, 2 + 2 channels,
12 bit resolution
6.2
6.3
6.4
6.5
26/757 E1 (Dx7-00-E.DOC)
 SAIA-Burgess Electronics Ltd.
5-3
5-5
5-9
5-11
5-17
5-23
5-29
5-31
5-33
5-35
5-41
5-41
5-41
6-3
6-7
6-13
6-17
6-21
Page 3
SAIA PCD Serie xx7
Contents
Page
7.
Fast counter and positioning modules
PCD2.H100
PCD2.H110
PCD2.H150
PCD2.H210
PCD2.H31x
Page 4
¦
¦
¦
¦
¦
Overview only
 SAIA-Burgess Electronics Ltd.
7-1
(Dx7-00-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Contents
Please note:
A number of detailed manuals are available to aid installation and operation of the SAIA PCD. These are for use by technically qualified staff,
who may also have successfully completed one of our "workshops".
To obtain the best performance from your SAIA PCD, closely follow the
guidelines for assembly, wiring, programming and commissioning given
in these manuals. In this way, you will also become one of the many enthusiastic SAIA PCD users.
If you have any technical suggestions or recommendations for improvements to the manuals, please let us know. A form is provided on the last
page of this manual for your comments.
Summary
PCD1/2 series
Ha rdw are
P CD 1
P CD 2
S erie x x7
PCD4 series
PCD6 series
H a rdw are
PCD4
H ar dwa re
PCD6
P CD 4. H1.. *)
PCD2.M220
PC D4.H2..
*)
P CD4.H3.. *)
General
Manuals
PC D4.H4..
*) A dapter m o dule 4 '717'4828'0
allows H m odules to be used
with the P CD6.
U se r's
G uide
R eference
Gu ide
(P G3)
P C D 8 .P 1 ..
PCD7.D2..
PCD7.
D160/170
PCD7.D8..
- S-Bus
- PROFIBUS
- Remote I/O
In sta llation
C om p one nts
fo r R S 4 85 N etw ork s
- PG4
- Modem
FUPLA/
KOPLA
function
fam ilies
26/757 E1 (Dx7-00-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 5
SAIA PCD Serie xx7
Contents
Reliability and safety of electronic controllers
SAIA-Burgess Electronics Ltd. is a company which devotes the greatest
care to the design, development and manufacture of its products:
•
•
•
•
•
•
•
•
state-of-the-art technology
compliance with standards
ISO 9001 certification
international approvals: e.g. Germanischer Lloyd, UL,
Det Norske Veritas, CE mark ...
choice of high-quality componentry
quality control checks at various stages of production
in-circuit tests
run-in (burn-in at 85°C for 48h)
Despite every care, the excellent quality which results from this does
have its limits. It is therefore necessary, for example, to reckon with the
natural failure of components. For this reason SAIA-Burgess Electronics
Ltd. provides a guarantee according to the "General terms and conditions
of supply".
The plant engineer must in turn also contribute his share to the reliable
operation of an installation. He is therefore responsible for ensuring that
controller use conforms to the technical data and that no excessive stresses are placed on it, e.g. with regard to temperature ranges, overvoltages
and noise fields or mechanical stresses.
In addition, the plant engineer is also responsible for ensuring that a
faulty product in no case leads to personal injury or even death, nor to
the damage or destruction of property. The relevant safety regulations
should always be observed. Dangerous faults must be recognized by additional measures and any consequences prevented. For example, outputs
which are important for safety should lead back to inputs and be monitored from software. Consistent use should be made of the diagnostic elements of the PCD, such as the watchdog, exception organization blocks
(XOB) and test or diagnostic instructions.
If all these points are taken into consideration, the SAIA PCD will provide you with a modern, safe programmable controller to control, regulate
and monitor your installation with reliability for many years.
Page 6
 SAIA-Burgess Electronics Ltd.
(Dx7-00-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure
1. System structure
1.1 Compatibility PCD1 - PCD2
Supply 24 VDC
Battery
Watch Dog
Ru n
R un
S to p
St op
S up ply 24 V D C
R un
E rr or
R un
H alt
Er ror
M PI
MP I
M127
Serie
User memory
• working memory (on board)
• battery backup
Peripherals
Digital inputs/outputs
• address space (bits)
• process image (bits)
Analogue inputs/outputs
• address space
Flags (bits)
Counters
Timers
Timing flags
Local data
Data blocks
• DB
Integrated interfaces
MPI
• baud rate
• number of stations
• data quantity GD
• GD packages
• active connections
Serial ports
• integral to CPU
SSI interface
• RS422 interface, 200 kHz
26/757 E1 (Dx7-11-E.DOC)
PCD1.M137
PCD2.M127
PCD2.M227
48 KBytes
Lithium
132 KBytes
Lithium
132 KBytes
Lithium
4096 each
2048 each
65 536 each
2048 each
65 536 each
2048 each
256 each
4096 each
4096 each
16 384
M0.0-M2047.7
256
Z0-Z255
256
T0-T255
8
(1 flag-byte)
4096 bytes
16 384
M0.0-M2047.7
256
Z0-Z255
256
T0-T255
8
(1 flag-byte)
6144 bytes
16 384
M0.0-M2047.7
256
Z0-Z255
256
T0-T255
8
(1 flag-byte)
6144 bytes
511
511
511
187.5 kbit/s
max. 32
32 bytes
max. 16
max. 8
187.5 kbit/s
max. 32
64 bytes
max. 16
max. 32
187.5 kbit/s
max. 32
64 bytes
max. 16
max. 32
1
RS232/RS422/
RS485/TTY
3
RS232/RS422/
RS485/TTY
3
RS232/RS422/
RS485/TTY
1
1
 SAIA-Burgess Electronics Ltd.
Page 1-1
SAIA PCD Serie xx7
System structure
Integrated PC
• PC/104 plug-in places
• Communications PCD ↔ PC
Integrated real-time clock
Fast interrupt inputs
Fast Counter (20 kHz)
Peripheral expansion
• number of I/O modules in
base unit
• number of I/O-modules in
expansion unit
Instruction set
Page 1-2
-
date/time
date/time
5
dual-port RAM
date/time
-
2
1
2
1
max. 4
max. 8
max. 8
S7-400
CPU412
max. 12 rsp. 16
S7-400
CPU414
max. 12 rsp. 16
S7-400
CPU414
 SAIA-Burgess Electronics Ltd.
(Dx7-11-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure
1.2 System information of the PCD1 and PCD2 series
1.2.1
Fundamental differences between the PCD1 and PCD2
The PCD1 series is based on the PCD2 one. Apart from the size, both series are similar. The PCD1 differs from the PCD2 in the following ways :
•
•
•
•
Only 4 I/O modules can be inserted.
Less memory in the basic controller unit.
Only one other interface in addition to the MPI interface.
The supply connector does not have the same features and is wired
differently.
• Instructionset/functionatlity according S7-400, CPU 412
26/757 E1 (Dx7-11-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-3
SAIA PCD Serie xx7
System structure
1.2.2
Technical data of the PCD1.M137
Number of I/Os
4 I/O modules for 32 digital I/Os, or equivalent
number of analogue I/O modules.
Prozessor
1 CPU with µC 68340
User memory
48 KBytes (integrated)
Battery
Lithium
Date/time
yes
Communication
interfaces
MPI + 1 free serial user interface
(optional)
- PCD7.F110: RS422/485
- PCD7.F130: 20 mA current loop
- PCD7.F150: RS485, electrically isolated
Page 1-4
Bus coupling
MPI, PROFIBUS-DP, others on demand
Programming units
PC with MPI interface
Programming
Software
STEP 7 programming software from Siemens
and other third party programming software
 SAIA-Burgess Electronics Ltd.
(Dx7-11-E.DOC)
26/757 E1
SAIA PCD Serie xx7
1.2.3
System structure
Technical data of the PCD2.M127
Number of I/Os
8, 12 or 16 I/O modules for 64, 96 or 128 digital
I/Os respectively, or equivalent number of analogues I/O modules.
Processor
1 CPU with µC 68340
User memory
132 KBytes (integrated)
Battery
Lithium
Flags (bit)
16 384 (M0.0 - M2047.7)
Local data
4096 bytes
Timers
256 (T0 - T255)
Counters
256 (Z0 - Z255)
Timing flags
8 (1 flag-byte)
Calculation ranges
+32'767 ... -32 768
(16 bit integer)
+2'147'483'647 ... -2'147'483'648
(32 bit integer)
+38
¦ normal-3,402'823 x 10 ... -1,175'494 x 10-38
±0
¦ ized floating
¦ point value
+1,175'494 x 10-38 ... +3,402'823 x 10+38
Date/time
yes
Communication
interfaces
MPI + 3 free serial user interfaces
(optional)
- PCD7.F110: RS422/485
- PCD7.F120: RS232
- PCD7.F130: 20 mA current loop
- PCD7.F150: RS485, electrically isolated
for port no. 1, and
- PCD7.F520/530 with interfaces no. 2
(RS232) and no. 3 (RS422/485).
SSI interface
RS 422, 200 kHz
Interrupts
2 fast interrupts
Fast counter
1 fast counter, 20 kHz
Bus coupling
MPI, PROFIBUS-DP, others on demand
Programming units
PC with MPI interface
Programmingsoftware
STEP 7 programming software from Siemens
and other third party programming software
26/757 E1 (Dx7-11-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-5
SAIA PCD Serie xx7
System structure
1.2.4
Technical data of the PCD2.M227
Number of I/Os
8, 12 or 16 I/O modules for 64, 96 or 128 digital
I/Os respectively, or equivalent number of analogue I/O modules.
Processor
1 CPU with µC 68340
User memory
132 KBytes (integrate)
Battery
Lithium
Flags (bit)
16 384 (M0.0 - M2047.7)
Local data
4096 bytes
Timers
256 (T0 - T255)
Counters
256 (Z0 - Z255)
Timing flags
8 (1 flag-byte)
Calculation ranges
+32'767 ... -32 768
+2'147'483'647 ... -2'147'483'648
(16 bit integer)
(32 bit integer)
-3,402'823 x 10+38 ... -1,175'494 x 10-38
±0
+1,175'494 x 10-38 ... +3,402'823 x 10+38
Page 1-6
¦ normal¦ized floating
¦ point value
Date/Time
yes
Communication
Interfaces
MPI + 3 freie serielle Anwenderschnittstellen
(optional)
- PCD7.F110: RS422/485
- PCD7.F120: RS232
- PCD7.F130: 20 mA current loop
- PCD7.F150: RS485, electrically isolated
for port no. 1, and
- PCD7.F520/530 with interfaces no. 2
(RS232) and no. 3 (RS422/485).
SSI interface
RS 422, 200 kHz
Interrupts
2 fast interrupts
Fast counter
1 fast counter, 20 kHz
Integrated PC
5 PC/104 plug-in places
Communication
PCD ↔ PC
Dual-Port RAM
Bus coupling
MPI, PROFIBUS-DP, others on demand
Programming units
PC with MPI interface
Programming
software
STEP 7 programming software from Siemens
and other third party programming software
 SAIA-Burgess Electronics Ltd.
(Dx7-11-E.DOC)
26/757 E1
SAIA PCD Serie xx7
1.2.5
System structure
General technical data of the PCD1 and PCD2 series
Supply voltage
24 VDC ±20 % smoothed or
19 VAC ±15 % full wave rectified (18 VDC)
Power consumption
PCD1 :
PCD2 :
Resistance to
interference
Complies with "Recommended levels higher than
minimum required" according to Standard for
PLC EN 61131-2 (former IEC 1131-2)
ESD complies to EN 61000-2, class 3
(former IEC 801-2)
Burst complies to EN 61000-4
(former IEC 801-4)
Power supply + digital I/O
Level 4 = 4 kV
Analogue I/O + serial interfaces Level 3 = 1 kV
10 W with 32 I/O
15 W with 64 I/O
20 W with 128 I/O
Ambient temperature During operation :
0 .. +55°C resp. 0 .. +40°C
(see "Mounting position")
Storage temperature : -25 .. +70°C
Air humidity
95 % r.F.
without condensation
complies to DIN 40040, Class F
Mechanical resistance Complies to EN 61131-2 (former IEC 1131)
Mounting position
Standard :
wall mounting
(screw terminals horizontal)
Special :
on horizontal surface or wall
mounting
(screw terminals vertical)
(Note : for the special mounting position, the
operating temperature is max. 40°C.)
Connections
I/O modules, additionnal modules and supply via
plug-in screw terminals for wires of 1.5 mm²
(AWG 16) or 2 x 0.5 mm² (2 x AWG 20)
Plug-in screw
terminals
The manufacturer guarantees that the screw
terminal can be connected/disconnected up to
20 times without the quality of the contact being
affected. Above this limit the srew terminal
should be changed.
Ul and C-UL requirements :
Wire data
26/757 E1 (Dx7-11-E.DOC)
Temperature :
Copper wire only
Tightening torque :
 SAIA-Burgess Electronics Ltd.
60/75°C
0.5 Nm.
Page 1-7
SAIA PCD Serie xx7
System structure
1.2.6
Software resources
PCD1
PCD2
OB 1
OB 1
OB 10, 11
OB 32, 35
OB 20, 21
OB 40, 41
OB 100
OB 10 - 13
OB 32 - 35
OB 20 - 23
OB 40 - 44
OB 100
OB 120, 121
OB 80 - 87
OB 120, 121
OB 80 - 87
256
256
511
256
256
511
S7-400
CPU 412
S7-400
CPU 414
4096 bytes
6144 bytes
Cyclic Organization Block
Time-Of-Day interrupts
Cyclic interrupts
Time-Delay interrupts
Hardware interrupts
Restart
Error handling
Synchronous alarms
Asynchronous alarms
Function Blocks
Functions
Data Blocks
FB
FC
DB
Instruction set
Local data
Flags (bit)
16 384 (M0.0 - M2047.7)
Timers
256 (T0 - T255)
Counters
256 (Z0 - Z255)
Timing flags
8 (1 flag-byte)
Calculation ranges
+32'767 ... -32 768
+2'147'483'647 ... -2'147'483'648
(16 bit integer)
(32 bit integer)
-3,402'823 x 10+38 ... -1,175'494 x 10-38
±0
+1,175'494 x 10-38 ... +3,402'823 x 10+38
Page 1-8
 SAIA-Burgess Electronics Ltd.
(Dx7-11-E.DOC)
¦ normal¦ ized floating
¦ point value
26/757 E1
SAIA PCD Serie xx7
System structure PCD1
1.3 Base unit PCD1.M137
1.3.1
Summary
Run
Stop
S up ply 24 V DC
Ru n
Er ro r
M PI
The PCD1 is composed of :
- lower part with I/O bus and main printed circuit board
- cover with LED labels
Two I/O modules can be easily inserted onto the I/O bus along both sides.
The following models are available :
Functions
M137
48 KBytes
User memory
Digital inputs/outputs:
Analogue inputs/outputs
address space (bits)
process image (bits)
address space
4096 each
2048 each
256 each
16 384
M0.0 - M2047.7
256
Z0 - Z255
256
T0 - T255
8
(1 flag-byte)
4096 bytes
Flags (bits)
Counters
Timers
Timing flags
Local data
Data Blocks (DB)
511
for more data see chapter 1.1
26/757 E1 (Dx7-12-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-9
SAIA PCD Serie xx7
System structure PCD1
1.3.2
Assembly and dimensions
The PCD1 base unit can be snapped onto the same DIN-type double rail
(2 x 35 mm) as the PCD2. Alternatively, the PCD1 can be fastened using
4 x M4 screws.
The normal assembly layout is to mount on a vertical surface with I/O
connection terminals running horizontally. In this position, ambient temperature up to 55°C are permissible. In all other positions convection acts
less favourably, so that the ambient temperature should not exceed 40°C.
Hanging the PCD1 on a DIN-type double rail
4
1
Press lower part of housing against mounting surface
2
Push firmly upwards to locate on projecting
part of rail
3
Press upper part against mounting surface
4
For safety, press down from above onto rail
3
1
Removal the PCD1
2
2
Push housing upwards and pull top forwards
Dimensions:
124
Run
70
200
208
70
d =4 ,5
S u p p ly
R un
Stop
M PI
68
E r ro r
34
1 25
1 4 1 ,4
without cover
Page 1-10
 SAIA-Burgess Electronics Ltd.
5, 5
64
with cover
(Dx7-12-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD1
1.3.3
Architecture of the PCD1 main board
The following block diagram shows the clear layout of the entire PCD1.
SU PPL Y
I/ O
Sockets 1 - 4
I/O BU S
C L OC K
NV o l
C PU
µ C 68 340
+ WD
Flags
User
program
memory
Timers
Counters
MPI
F - M O D U LE S
SE R IA L IN T E R FA C E
26/757 E1 (Dx7-12-E.DOC)
 SAIA-Burgess Electronics Ltd.
PCD1.M 137
Page 1-11
SAIA PCD Serie xx7
System structure PCD1
1.3.4
Layout of the PCD1 main board
The drawing below shows the PCD1.M120 main board (maximum
equipment) with cover removed.
System firmware
RAM memory
Socket for insertion of
non volatile user memory
Jumper J1aund J3
for user memory
Lithium battery
J2
②
J1
J3
µP
EEPROM for storage
of configuration data
68340
J4
J5
③
MPI connector
Microcontroller
68340
24 VDC
RUN
ERR
Supply 24 VDC
①
Communications
interface no. 1
SPACE A
SUPPLY
J2, J4 and J5
connectors for
space B
④
Operating state LEDs
Circuit for supply
Space A
With its cover removed, the PCD1 shows all active components apart
from the I/O bus printed circuit board. This is located below the main
board on a level with the I/O modules.
Caution : When the cover has been removed, exposed
components are sensitive to electrostatic
discharges.
When the device is switched on, do not change
the jumpers, insert or remove I/O modules, or
perform any similar manipulations.
Page 1-12
 SAIA-Burgess Electronics Ltd.
(Dx7-12-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD1
➀ Connection of supply, electronic fuse and interference protection
INB2
INB1
24 VDC
25
24
23
22
21
20
Connection is made at terminals
20 to 23 with wires of maximum
1.5 mm2 (with cable end bush).
Smoothed or pulsed direct current
can be used (see technical data).
The "24 VDC" LED indicates when the supply voltage is present.
Reverse voltage protection prevents the destruction of the circuit by incorrect connection.
The 24V circuit is protected against damage in case of too high current by
an electronic fuse (PTC resistor).
② Data protection
The CPUs PCD1.M137 and PCD2.M127/227 are equipped with a non
recharchable Lithium battery for data protection for 1 to 3 years.
Battery type:
Recommended product
Order number by SBE
LI - 3V
RENATA
4 507 4817 0
Recognition of battery capacity:
with Error OB
A battery exchange can become without problems in every operating
state without data loss if the PCD is on tension.
26/757 E1 (Dx7-12-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-13
SAIA PCD Serie xx7
System structure PCD1
③ MPI interface for the connection of the program unit
The following functions can be carried out via the MPI interface:
• Programming
• Data exchange with other controllers
• Connection of operator terminals and observation devices
The pin assignment of the MPI interface is the following:
Pin no.
Meaning
7
2
6
5
4
9
8
3
+ 24V
0V of the 24V supply
+ 5V
0V of the 5V supply
RTS of the AS
RTS of the PG
Data conductor A
Data conductor B
P24V
M24V
P5V
M5V
RTSAS
RTSPG
LTG_A
LTG_B
Warning: No PCD8.K111 cable may be employed
Page 1-14
 SAIA-Burgess Electronics Ltd.
(Dx7-12-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD1
④ Operating states of the processor
The states are displayed by 3 LEDs on the front panel :
• SUPPLY 24 VDC
• RUN
• ERROR
Yellow LED
Yellow LED
Red LED
The SUPPLY 24VDC LED indicates the presence of the external power
supply. The RUN and ERROR LEDs indicate the operating state of the
CPU.
The CPU can have the following operating states :
POST, STOP, START, RUN
State
LED
Meaning
POST
(Power On
Self Test)
RUN on/off
ERROR on/off
SUPPLY on
Self-check for approx. ½ sec
by switching on
Coded signals
STOP
RUN off
ERROR off
PCD is in STOP state. The outputs
are switches off, the user program
is not executed
START
RUN flashing
ERROR off
State between STOP and RUN.
The Start OB is executed
(if programmed)
RUN
RUN on
ERROR off
Normal processing of the user
program
ERROR on/off
User programmable
26/757 E1 (Dx7-12-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-15
SAIA PCD Serie xx7
System structure PCD1
1.3.5
Addressing I/O modules
The PCD1 consists of a non-expandable base unit into which up to 4 I/O
modules from the PCD2 series can be inserted. Addressing is clockwise
in steps of 16, from 0 to 63.
1
2
Base unit PCD1.M137
Numbering of the 4 plug-in
places
4
3
Address and terminal labelling
See explanations in the following chapter 1.4.5 (PCD2).
Page 1-16
 SAIA-Burgess Electronics Ltd.
(Dx7-12-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD2
1.4 Base units PCD2.M127 and PCD2.M227 as well as
expansion units PCD2.C107 and PCD2.C157
1.4.1
Summary
Suppl y 24 VDC
Battery
W atch Dog
Run
Stop
Run
Hal t
Error
M227
M PI
M127
The base units PCD2.M127 and M227 are composed of:
- lower part with I/O bus and main printed circuit board
- cover with LED labels
Four I/O modules can be easily inserted onto the I/O bus along both sides.
The following models are available :
Functions
PCD2.M127 and PCD2.M227
132 KBytes
User memory
Digital inputs/outputs:
Analogue inputs/outputs
address space (bits)
process image (bits)
address space
65 536 each
2048 each
4096 each
16 384
M0.0 - M2047.7
256
Z0 - Z255
256
T0 - T255
8
(1 flag byte)
6144 bytes
Flags (bits)
Counters
Timers
Timing flags
Local data
Data Blocks (DB)
511
for more data see chapter 1.1
26/757 E1 (Dx7-13-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-17
SAIA PCD Serie xx7
System structure PCD2
PCD2.C107 and PCD2.C157 expansion units
Sup ply 2 4 VDC
Battery
Watch Do g
M127
M127
Ru n
Ha lt
Error
R un
Stop
M PI
C107
K100
Arranges side-by-side or
one above the other
C107
The ..C107 expansion unit has the same dimensions as the base unit
PCD2 and takes 8 additional I/O modules.
The ..C157 expansion unit has the same dimensions as the base unit
PCD1 and takes 4 additional I/O modules..
Connection to the PCD2.M127 rsp. PCD2.M227 is via the 26-core extension cable PCD2.K100 (for vertical mounting position) or PCD2.K110
(for horizontal mounting position).
Power for the expansion unit is also provided via this cable.
Caution :
Page 1-18
The extension cable must never be connected or disconnected while the unit is
powered on !
 SAIA-Burgess Electronics Ltd.
(Dx7-13-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD2
1.4.2
Assembly and dimensions
The PCD1 base unit can be snapped onto the same DIN-type double rail
(2 x 35 mm) as the PCD2. Alternatively, the PCD2 can be fastened using
4 x M4 screws.
The normal assembly layout is to mount on a vertical surface with I/O
connection terminals running horizontally. In this position, ambient temperature up to 55°C are permissible. In all other positions convection acts
less favourably, so that the ambient temperature should not exceed 40°C.
Hanging the PCD2 on a DIN-type double rail
4
1
Press lower part of housing against mounting surface
2
Push firmly upwards to locate on projecting
part of rail
3
Press upper part against mounting surface
4
For safety, press down from above onto rail
3
1
2
26/757 E1 (Dx7-13-E.DOC)
Removal the PCD2
2
Push housing upwards and pull top forwards
 SAIA-Burgess Electronics Ltd.
Page 1-19
SAIA PCD Serie xx7
System structure PCD2
Dimensions
PCD1.M137/PCD2.C157
PCD2.M127/PCD2.C107
d=4,5
24 V
BATT
WD
124
MPI
70
200
RUN
HALT
ERR.
68
208
70
d=4,5
125
34
230
141,4
248
without cover
without cover
64
5,5
with cover
Cable layout
24 V
BATT
WD
MPI
RUN
HALT
ERR.
Page 1-20
 SAIA-Burgess Electronics Ltd.
The I/O modules can be wired
up on both sides using the
corresponding cable channels.
Cables to terminals on the
main board are routed
through both lateral channels,
from below or above.
(Dx7-13-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD2
1.4.3
Architecture of the PCD2 main board
The following block diagram shows the clear layout of the entire PCD2.
SUPPLY
I/O
Sockets 1 - 8
I/O BUS
CLOCK
NVol
+
DISPLAY
CPU
µC 68340
I/O EXTENTION
Sockets 9 - 16
I/O BUS
Flags
User
program
memory
Timers
Counters
F-MODULES
MPI
INTERRUPT
INPUTS
+
FAST
COUNTERS
SERIAL INTERFACES
26/757 E1 (Dx7-13-E.DOC)
 SAIA-Burgess Electronics Ltd.
PCD2.M127
Page 1-21
SAIA PCD Serie xx7
System structure PCD2
1.4.4
Layout of the PCD2 main board
The drawing below shows the PCD2.M127 main board (maximum
equipment) with cover removed.
Jumper J2 and J3 for user memory
Upper spaces for
for I/O modules
Socket for insertion of
non volatile user memory
Microcontroller 68'340
System firmware
Space B
Battery buffered
user program
memory
32
48
µC
68340
OPEN
SPACE B
REF
WP
RTC
Jumper J0 for
interface no. 0
User Memory
Communications
interfaces
no. 2 and 3
Firmware
16
EEPROM
Firmware
0
Interrupt inputs
or fast software
counter
(M127/M227 only)
24V
RUN
HALT
SUPPLY
RO
WD
XOB1
ENABLE
BATT
ERR
Communications
interface no. 1
SPACE A
Supply 24 VDC
Input circuit
①
112
96
80
②
64
③
Lower spaces
for I/O modules
MPI connector
Space A
Circuit for supply
Operating state LEDs
Battery
With its cover removed, the PCD2 shows all active components apart
from the I/O bus printed circuit board. This is located below the main
board on a level with the I/O modules.
Caution : When the cover has been removed, exposed
components are sensitive to electrostatic
discharges.
When the device is switched on, do not change
the jumpers, insert or remove I/O modules, or
perform any similar manipulations.
Page 1-22
 SAIA-Burgess Electronics Ltd.
(Dx7-13-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD2
① Connection of supply, fuse and interference protection
WD
24 VDC
25
24
23
22
21
20
Connection is made at terminals
20 to 24 with wires of maximum
1.5 mm2 (with cable end bush).
Smoothed or pulsed direct current
can be used (see technical data).
The "24 VDC" LED indicates when the supply voltage is present.
Reverse voltage protection prevents the destruction of the circuit by incorrect connection.
The 24V circuit is protected against damage in case of too high current by
an electronic fuse (PTC resistor).
② Data protection
The CPUs PCD1.M137 and PCD2.M127/227 are equipped with a non
recharchable Lithium battery for data protection for 1 to 3 years.
Battery type:
Recommended product
Order number by SBE
LI - 3V
RENATA
4 507 4817 0
Recognition of battery capacity:
with Error OB
A battery exchange can become without problems in every operating
state without data loss if the PCD is on tension.
26/757 E1 (Dx7-13-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-23
SAIA PCD Serie xx7
System structure PCD2
③ MPI interface for the connection of the program unit
The following functions can be carried out via the MPI interface:
• Programming
• Data exchange with other controllers
• Connection of operator terminals and observation devices
The pin assignment of the MPI interface is the following:
Pin no.
Meaning
7
2
6
5
4
9
8
3
+ 24V
0V of the 24V supply
+ 5V
0V of the 5V supply
RTS of the AS
RTS of the PG
Data conductor A
Data conductor B
P24V
M24V
P5V
M5V
RTSAS
RTSPG
LTG_A
LTG_B
Warning: No PCD8.K111 cable may be employed
Page 1-24
 SAIA-Burgess Electronics Ltd.
(Dx7-13-E.DOC)
26/757 E1
SAIA PCD Serie xx7
System structure PCD2
1.4.5
1
Addressing I/O modules
2
3
4
PCD2.M127/M227 base unit
All modules of types E, A, W and
H can be used if desired.
8
7
6
5
Bus extension cable
PCD2.K100 or K110
9
10
11
12
PCD2.C107 expansion unit
16
15
14
9
13
10
PCD2.C157 expansion unit
12
11
.
26/757 E1 (Dx7-13-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 1-25
SAIA PCD Serie xx7
System structure PCD2
Address and terminal labelling
Cover of PCD2
LED display of status
I/O function name
I/O module name
I/O module
Terminal numbers
9
8 7
6
5
4
3
2 1
0
Function mnemonics and
relative I/O addresses
64
• When the cover is in position (during operation) the logical state of
each digital I/O is displayed by an LED.
• When the cover is removed, the terminals are accessible.
Page 1-26
 SAIA-Burgess Electronics Ltd.
(Dx7-13-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Power supply and connection plan
2. Power supply and connection plan
2.1 External power supply
2.1.1
Application: simple and small installations
+18V
19VAC
±15%
0V
L N
GND
Transformer min. 50VA
• Sensors
• Actuators
Electromechanical switches
Relays, lamps and small valves with < 0.5 A
switching current
PCD1.M1.., PCD2.M1.., PCD2.C1..
PCD2.E1.., E5.., E6.., A2.., A4.., B1.., G4..
PCD2.W1.., W2.., W4.., W5..
• For modules
2.1.2
Application: small to medium installations
Transformer min. 50VA
+18V
19VAC
±15%
0V
GND
+24V =
L
24VDC
N
Controller
±2 0%
0V
L N
• Sensors
• Actuators
• For modules
Electromechanical switches, proximity
switches and photoelectric barriers
Relays, lamps, displays and small valves with
< 0.5 A switching current
PCD1.M1.., PCD2.M1.., PCD2.C1..,
PCD2.E1.., E5.., E6.., A2.., A4.., B1.., G4..
PCD2.W1.., W2.., W4.., W5..
PCD2.H1.. *), H2.. *), H3.. *)
PCD7.D1.. *), D2.. *), PCA2.D12 *), D14 *)
*) These modules must be connected to 24 VDC smoothed.
26/757 E1 (Dx7-20-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 2-1
SAIA PCD Serie xx7
Power supply and connection plan
2.1.3
Application : medium to large installations
Fuse 16A
24VDC ±20%
+24V =
+24V =
400VAC / 19VAC
+24V =
470 - 2200 µF/40V
R S
T
0V
GND
• Sensors
• Actuators
• For modules
Page 2-2
Electromechanical switches, proximity
switches and photoelectric barriers
Relays, lamps, large valves and large
contactors with consumtion up to 2 A.
PCD1.M1.., PCD2.M1.., PCD2.C1..
PCD2.E1.., E5.., E6.., A2.., A3.., A4.., B1.., G4..
PCD2.W1.., W2.., W4.., W5..
PCD2.H1.., H2.., H3..
PCD7.D1.., D2...
PCA2.D12, D14
 SAIA-Burgess Electronics Ltd.
(Dx7-20-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Power supply and connection plan
2.2 Grounding and connection layout
Shielding and
grounding plate
Supply
Earthing bar
① The lower part of the PCD1 or of the PCD2 housing contains the shielding and grounding plate. It forms the common, large-surface user ground
for all I/O modules and for the external supply. Whenever an I/O module
is inserted, a reliable multipoint contact with the module is produced by
the plate contact strip.
② The zero potential (negative pole) of the 24 V supply is connected to the
negative terminal of the PC1 or the PCD2 supply. This latter should be
connected to the earthing bar by the shortest possible 2.5 mm2 wire.
The negative terminal of the F1.. module must also be connected to the
earthing bar as well as, on the PCD2, the negative terminal of the "Interrupt" part.
Any shielding of analogue signals or communications cables should also
be brought to the same ground potential, either via a negative terminal or
the earthing bar.
26/757 E1 (Dx7-20-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 2-3
SAIA PCD Serie xx7
Power supply and connection plan
2.3 Internal power supply
2.3.1
Schematic diagram of the PCD1
PCD1 bus
LE D
24V
PTC
DC
24 VDC supply
20
+5V
DC
21
V oltag e
m onito r
5V
C LR
3 9 V 2200uF
22
0V
23
DC
V+
( 16 .. 2 4 V )
DC
Rating of internal voltages
With effect from basic units PCD2.M137, the following currents are
available for plug-on modules :
+5V
:
+V (16.. 24V) :
2.3.2
750 mA
100 mA
Schematic diagram of the PCD2
PCD2 bus
LED
24V
PTC
DC
24 VDC supply
20
+5V
DC
21
Voltage
monitor
5V
22
39V
2200uF
23
CLR
0V
24
DC
Watch Dog
LED
WD
WD
V+
(16.. 24V)
DC
25
200ms
WD
addr. 255
I/O Write
26
Rating of internal voltages
With effect from basic units PCD2.M127 or PCD2.M227, the following
currents are available for plug-on modules :
+5 V
: 1600 mA
+V (16.. 24 V) : 200 mA
Page 2-4
(1100 mA on the hardware prior
to version "H")
 SAIA-Burgess Electronics Ltd.
(Dx7-20-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Power supply and connection plan
2.3.3
Power requirements of PCD2 modules
Internal
power supply
I at +5 V (mA)
Internal
power supply
I at + V (mA)
External
power supply
I at 24 VDC
PCD2.
E11x
E500
E61x
1 .. 24
<1
1 .. 24
----
8 I with 6 mA
8 I with 5.0/3.7 mA
A200
A220
A250
A300
A400
A410
1 .. 15
1 .. 20
1 .. 25
1 .. 20
1 .. 25
1 .. 24
-------
max. 32 mA
max. 48 mA
max. 64 mA
Load current
Load current
Load current
B100
1 .. 25
--
Load current
G400
10 .. 65
35
Load current
W10x
W110/111
W112/113
W200/210
W220
W4x0
W5x0
45
45
45
8
8
1
200
15
30
20
5
16
30
--
-----100 mA (W410)
--
H100
H110
H150
H210
H31x
90
70
50
75
150
------
CCO output : 0.5 A
Load current
Load current
Load current
max. 15 mA
F500
F510
F520
F530
F540
F550
70
140
250
350
( 10 )
( 75 )
-------
Type
C100
C150
1) 2) 3)
26/757 E1 (Dx7-20-E.DOC)
1)
2)
10
10
3)
3)
---
3)
3)
See in the following page
 SAIA-Burgess Electronics Ltd.
Page 2-5
SAIA PCD Serie xx7
Power supply and connection plan
Type
PCD7.
F110
F120
F130
F150
F700
F750
Internal
power supply
I at +5 V (mA)
Internal
power supply
I at + V (mA)
50
10
10
130
200
330
--40
----
External
power supply
I at 24 VDC
Warning about the consumption of the terminal PCD7.D16x
Type
PCD7.
D160
D160
D162 1)
D162 1)
D163 2)
D163 2)
Internal
power supply
I at +5 V (mA)
Internal
power supply
I at + V (mA)
Back-lighting
( 25 )
( 225 )
35
235
100
300
-------
No
Yes
No
Yes
No
Yes
The back-lighting of the terminal PCD7.D160 increases the consumption
of 200 mA like described in the above table
Page 2-6
1)
Set of modules including the terminal PCD7.D160 and
the communication interface PCD2.F540.
2)
Set of modules including the terminal PCD7.D160 and
the communication interface PCD2.F550.
3)
The E/A/W/H modules on the expansion unit are also
supplied from the base unit PCD2.M127 or M227.
 SAIA-Burgess Electronics Ltd.
(Dx7-20-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Specific system functions
3. Specific system functions
General
All system functions use a "0" value in the BIE bit of the status word to
indicate whether an error has occurred during the processing of a
function. In addition, some SFCs supply a further error code in the return
value ("RET_VAL"). Error-free execution sets the BIE bit.
26/757 E1 (Dx7-31-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 3-1
SAIA PCD Serie xx7
Specific system functions
3.1 Serial communication
General structure
External
DB
Transmit
buffer
PCD
Pointer
128 Byte
RS232, CL,
RS422, RS485
UART
Receive
buffer
DB
Pointer
128 Byte
System program
Application program
The UART (Universal Asynchronous Receiver Transmitter) is the
interface between the outside world and the PCD’s transmit or receive
buffer. Data is transferred between the UART and the transmit or receive
buffer via the system program. Data transfer between the transmit or
receive buffer and the DBs in the PCD is done by the application
program. This arrangement exists for each separate interface.
There are two basic methods for transmitting or receiving:
a)
Attempts are made to execute a data transfer until success is finally
achieved, or
b)
The status of the transmitter/receiver is assessed and, on arrival of
an event, data transfer is executed specifically.
a)
Initialize
interface
b)
Initialize
interface
Transmit or
receive data
no
OK ?
Query status
no
yes
OK ?
yes
Transmit or
receive data
Page 3-2
 SAIA-Burgess Electronics Ltd.
(Dx7-31-E.DOC)
26/757 E1
SAIA PCD Serie xx7
3.1.1
Specific system functions
Read serial interface SFC 240 "RCV_COM"
When the "RCV_COM" SFC is called, the number of bytes indicated is
transferred from the receive buffer to the buffer specified.
SFC240
EN
Parameters
Parameter
COM_NR
BUFFER
RET_VAL
COM_NR
IN0
RET_VAL
BUFFER
IN1
ENO
Declaration
INPUT
INPUT
OUTPUT
Error information
Error code
(W#16#....)
0000
00FE
0001
Data type
BYTE
ANY
WORD
Memory range
E,A,M,D,L,Const.
E,A,M,D,L
Description
Interface number 1, 2, 3
Pointer to buffer (128 Byte)
Error information
Description
no error
incorrect interface number
insufficient bytes in receive buffer
26/757 E1 (Dx7-31-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 3-3
SAIA PCD Serie xx7
Specific system functions
3.1.2
Transmit serial interface SFC 241 "COM_SEND"
When the "COM_SEND" SFC is called, the number of bytes indicated is
transferred from the specified buffer into the transmit buffer. The
transmission itself takes place in the background.
SFC241
EN
Parameters
Parameter
COM_NR
BUFFER
RET_VAL
IN0
RET_VAL
BUFFER
IN1
ENO
Declaration
INPUT
INPUT
OUTPUT
Error information
Error code
(W#16#....)
0000
00FE
0001
Page 3-4
COM_NR
Data type
BYTE
ANY
WORD
Memory range
E,A,M,D,L,Const.
E,A,M,D,L
Description
Interface number 1, 2, 3
Pointer to buffer (128 Byte)
Error information
Description
no error
incorrect interface number
insufficient space in transmit buffer
 SAIA-Burgess Electronics Ltd.
(Dx7-31-E.DOC)
26/757 E1
SAIA PCD Serie xx7
3.1.3
Specific system functions
Read status of serial interface SFC 242 "COM_STAT"
When the "COM_STAT" SFC is called, the status of the specified serial
interface is returned.
SFC242
COM_NR
EN
RET_VAL
IN0
OUT1
RCV_CNT
OUT2
SND_CNT
OUT3
STATUS
EN0
Parameters
Parameter
COM_NR
RET_VAL
RCV_CNT
Declaration
INPUT
OUTPUT
OUTPUT
Data type
BYTE
WORD
WORD
Memory range
E,A,M,D,L,Const.
E,A,M,D,L
E,A,M,D,L
SND_CNT
OUTPUT
WORD
E,A,M,D,L
STATUS
OUTPUT
WORD
E;A;M;D;L
Description
Interface number 1, 2, 3
Error information
Number of bytes in receive
buffer
Number of bytes in transmit
buffer
Status
Bit 0 = 1 → Receive buffer
overrun
Bit 1 = 1 → Interface error
Error information
Error code
Description
(W#16#....)
0000
no error
00FE
incorrect interface number
26/757 E1 (Dx7-31-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 3-5
SAIA PCD Serie xx7
Specific system functions
3.1.4
Initialize serial interface SFC 243 "COM_INIT"
When the "COM_INIT" SFC is called, the specified serial interface is
initialized.
SFC243
EN
COM_NR
IN0
SELECT
IN1
BAUDRATE
IN2
RET_VAL
COM_PAR
IN3
EN0
Parameters
Parameter
COM_NR
SELECT
Declaration
INPUT
INPUT
Data type
BYTE
BYTE
Memory range
E,A,M,D,L,Const.
E,A,M,D,L,Const.
BAUDRATE
COM_PAR
INPUT
INPUT
DINT
WORD
E,A,M,D,L,Const.
E,A,M,D,L,Const.
RET_VAL
OUTPUT
WORD
E,A,M,D,L
Description
Interface number
Interface mode
RS232
=
0
RS485
=
1
RS422
=
2
CL 20 mA
=
3
Baud rate
Initialization parameters for the
interface (see below)
Error information
Error information
Error code
Description
(W#16#....)
0000
no error
00FE
incorrect interface number or incorrect initialization values
Meaning of “COM_PAR”
Bits 1..0
Number of data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
Bits 4..2
Parity
(000 = even, 001 = odd, 010 = force low, 011 = force high, 10x =no)
Permitted baud rates : 300, 600, 1200, 2400, 4800, 9600, 19200, 38400*)
*) 38400 for COM1 only
Page 3-6
 SAIA-Burgess Electronics Ltd.
(Dx7-31-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Specific system functions
3.2 Interrupt inputs / fast counters
Interrupt inputs and the fast counter occupy the same elements. It is
therefore only possible to use either the interrupt inputs or the fast
counter.
Assignment of terminal block (see also section 1.4.4, terminal block
above right).
0
SSI-Data +
1
SSI-Data -
2
Count input / Interrupt input 0
3
Count input / Interrupt input 1
4
SSI-Clock +
5
SSI-Clock -
6
NC
7
NC
8
9
GND
Block diagram of the fast counter
Counter
input
Counter
enable
Clock
Enable
Counter
Comparator
Call OB 40
Comparison
value 1
Comparison
value 2
•
•
•
•
26/757 E1 (Dx7-31-E.DOC)
The counter always starts from 0 (zero)
Comparison value 1 must be smaller than comparison value 2
The counter can count no higher than comparison value 2
The counter always counts upwards
 SAIA-Burgess Electronics Ltd.
Page 3-7
SAIA PCD Serie xx7
Specific system functions
3.2.1
Block / enable interrupt inputs SFC 250 "INP_INT"
The "INP_INT" SFC is used to block or enable the interrupt inputs.
SFC250
ENABLE
EN
RET_VAL
IN0
EN0
Parameters
Parameter
ENABLE
Declaration
INPUT
Data type
BIT
Memory range
E,A,M,D,L
RET_VAL
OUTPUT
WORD
E,A,M,D,L
Description
1 → Enable interrupts
0 → Block interrupts
Error information
When the interrupt condition occurs, OB 40 is called.
Caution :
Interrupt input 2 (terminal 3) becomes active with a
rising edge while interrupt input 1 (terminal 2) becomes
active with a falling edge. Input 1 only triggers an
interrupt when input 2 = zero.
Error information
none
Using local variable 0B40_STRT_INF it is possible to query which of the
two interrupt inputs is active:
OB40_STRT_INF = B#16#41
OB40_STRT_INF = B#16#42
Page 3-8
→
→
 SAIA-Burgess Electronics Ltd.
Interrupt input 0
Interrupt input 1
(Dx7-31-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Specific system functions
3.2.2
Configure / start counter SFC 251 "INITCNTR"
The "INITCNTR" SFC configures and starts or stops the integral counter.
SFC251
EN
START
IN0
ENABLE
IN1
INT2
IN2
INT1
IN3
VALUE2
IN4
RET_VAL
VALUE1
IN5
EN0
Parameters
Parameter
Declaration Data type Memory range
START
INPUT
BIT
E,A,M,D,L
ENABLE
INPUT
BIT
E,A,M,D,L
INT2
INPUT
BIT
E,A,M,D,L
INT1
INPUT
BIT
E,A,M,D,L
VALUE2
VALUE1
RET_VAL
INPUT
INPUT
OUTPUT
WORD
WORD
WORD
E,A,M,D,L
E,A,M,D,L
E,A,M,D,L
Description
1 → Start counter (counts up)
0 → Stop counter
1 → Enable input active
0 → Enable input inactive
1 → Interrupt when second counter
status is reached
0 → No interrupt when second
counter status is reached
1 → Interrupt when first counter
status is reached
0 → No interrupt when first counter
status is reached
second counter status
first counter status
Error information
If the interrupts are enabled, OB 40 is called when the relevant counter
status is reached.
Possible values for VALUE1 or VALUE2 : W#16#0002 to W#16#FFFF
or 0.
Error information
Error code
Description
(W#16#....)
0000
no error
00FD
invalid counter status (i.e. counter status has been transmitted as 1)
26/757 E1 (Dx7-31-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 3-9
SAIA PCD Serie xx7
Specific system functions
3.2.3
Read counter status SFC 252 "READCNTR"
The "READCNTR" SFC reads counter status.
SFC252
RET_VAL
EN0
EN
Parameters
Parameter
RET_VAL
Page 3-10
Declaration
OUTPUT
Data type
WORD
Memory range
E,A,M,D,L
Description
The RET_VAL parameter
contains the value read.
 SAIA-Burgess Electronics Ltd.
(Dx7-31-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Specific system functions
3.3 SSI interface
3.3.1
Read SSI interface SFC 253 "READ_SSI"
(SSI = Synchronous Serial Interface)
The "READ_SSI" SFC can be used to read the integral SSI interface. This
SFC reads the number of bits specified. No attempt is made to interpret
the value read, i.e. any coded error bits which the value might contain
must be evaluated in the STEP7 program. If the value is supplied in Gray
code, this can be converted with SFC 254.
SFC253
BIT_CNT
EN
RET_VAL
IN0
EN0
Parameters
Parameter
BIT_CNT
Declaration
INPUT
Data type
BYTE
Memory range
E,A,M,D,L,Const.
RET_VAL
OUTPUT
DWORD
E,A,M,D,L
Description
Number of bits to be read
(1..32)
The RET_VAL parameter
contains the value read.
Error information
If when called an invalid number is transferred in "BIT_COUNT", the
BIE bit is reset.
26/757 E1 (Dx7-31-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 3-11
SAIAÒ PCD Serie xx7
Specific system functions
3.3.2
Converting Gray code to binary SFC 254 "GRAY2BIN"
The "GRAY2BIN" SFC converts a Gray code format number into binary
format.
SFC254
Parameters
Parameter
GRAY
RET_VAL
EN
RET_VAL
GREY
IN0
EN0
Declaration
INPUT
OUTPUT
Data type
DWORD
DWORD
Memory range
E,A,M,D,L,Const.
E,A,M,D,L
Description
Value in Gray code
The RET_VAL parameter
contains the binary value
Error information
none
Page 3-12
Ó Saia-Burgess Controls Ltd.
(0602-Dx7-31-E.DOC)
26/757 E1
SAIA PCD Serie xx7
The serial communications interfaces
4. The serial communications interfaces
(F - Modules)
The F-Modules are inserted directly into spaces A and B and make the
following functions possible :
The following is available for space A (interface no. 1) :
• model PCD7.F110 with RS 422/485 interface
• model PCD7.F120 with RS 232 interface
• model PCD7.F130 with 20 mA current loop interface
• model PCD7.F150 with RS 485 interface, electrically isolated
The following is available for space B of the PCD2:
• Type PCD2.F520/530 with communications interface no. 2 (RS232)
as well as no. 3 (RS422/485). The PCD2.M127 base unit is required
for the F520 module
26/757 E1 (Dx7-41-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 4-1
SAIA PCD Serie xx7
The serial communications interfaces
4.1 Overview of the serial communications interfaces
Layout PCD2
39
Space B
for function module
F5.. or F7..
Serial
interfaces
no. 2 and 3
or PROFIBUS
0
µC 68340
+ user memory
Interrupt
inputs or fast
counters
9
30
PGU-plug
serial interface
no. 0 RS 232
29
10
S-Bus
interface no. 0
Watch dog
and supply
24 VDC
Space A
for function
module F1..
Supply
and WD
Serial
interface
no. 1
20
19
In its maximum layout, the PCD1 has 2 communications interfaces and
the PCD2 has 4 communications interfaces.
All interfaces can be assigned individually using the SASI instruction for
various communications modes in the range 110 to 38400 bps.
The following baud rate combinations are not possible for the interfaces
no. 0 and no. 1 (DUART 1), nor for interfaces no. 2 and no. 3 (DUART 1) :
38.4 KBaud
38.4 KBaud
38.4 KBaud
+
+
+
38.4 Kbaud
19.2 KBaud
150 Baud or 110 Baud
The following interfaces are available :
Interface 0 :
•
Interface 1 :
• RS 422/RS 485,
with PCD7.F110 plug-in module
(fix RS 485 equipped on the PCD1.M110)
• RS232 (suitable for modem connection)
with PCD7.F120 plug-in module
• 20 mA current loop
with PCD7.F130 plug-in module
• RS 485 electrically isolated
with PCD7.F150 plug-in module
Interface 2 :
• RS 232
Interface 3 :
Page 4-2
MPI (Multi Point Interface)
¦ on plug-in
¦ module
• RS 422/485 ¦ PCD2.F5..
 SAIA-Burgess Electronics Ltd.
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
The serial communications interfaces
4.2 The MPI interface no. 0
The following functions can be carried out via the MPI interface:
• Programming
• Data exchange with other controllers
• Connection of operator terminals and observation devices
The pin assignment of the MPI interface is the following:
Pin no.
Meaning
7
2
6
5
4
9
8
3
+ 24V
0V of the 24V supply
+ 5V
0V of the 5V supply
RTS of the AS
RTS of the PG
Data conductor A
Data conductor B
P24V
M24V
P5V
M5V
RTSAS
RTSPG
LTG_A
LTG_B
Warning: No PCD8.K111 cable may be employed
26/757 E1 (Dx7-41-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 4-3
SAIA PCD Serie xx7
The serial communications interfaces
4.3 Interface no. 1 with modules PCD7.F1..
Interface no. 1 can be fitted by the PCD1.M137, by the PCD2:127 and
by the PCD2.M227 with various interface modules of the type PCD7.F1..
at connection site A .
4.3.1
RS 422/485 with module PCD7.F110
• Connexion for RS 422
Point-to-point communications in all modes with the exception of MC4
and SS../SM.. (S-Bus) modes.
Connector
designation
Cable
PCD1.M137
PCD2.M..
Space A
PCD7.F110
J1
OPEN
CLOSED
10
11
12
13
14
15
16
17
18
19
11
12
13
14
16
17
18
19
Peripheral
PGND
TX
/TX
RX
/RX
PGND
RTS
/RTS
CTS
/CTS
PGND
TX
/TX
RX
/RX
SGND
RTS
/RTS
CTS
/CTS
Note : For RS422 each pair of receiver lines is terminated on the ..F110
module with a 150Ω line termination resistor.
For this, jumper J1 must be left in the "OPEN" position (factory
setting). The jumper J1 is located on the rear side of the F1 board.
F-Module PCD7.F120 is not available for PCD1.M137.
Page 4-4
 SAIA-Burgess Electronics Ltd.
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
The serial communications interfaces
• Connexion for RS 485 and S-Bus
Connector
designation
Bus Cable
PCD1.M137
PCD2.M..
10
11
12
13
14
15
16
17
18
19
Space A
PCD7.F110
J1
OPEN
CLOSED
11
12
13
14
PGND
RX - TX
/RX - //TX
16
17
18
19
GND
PGND
RX - TX
/RX - /TX
Bus RS 485
not used
Selection of line termination resistors
First station
Middle stations
PCD1/2.M..
PCD1/2.M..
End station
PCD1/2.M..
PCD1/2.M..
+5 V
+5 V
11
12
11
12
Pull up
330 Ohm
/RX - /TX
12
Termination
resistor
150 Ohm
12
Bus RS485
RX - TX
11
Pull down
330 Ohm
11
Segment lenght max. 1200 m
max. 32 stations
Note :
- At the first and last stations jumper J1 must be set to the "CLOSED"
position.
- For all other stations, jumper J1 must be left in the "OPEN" position
(factory setting).
The jumper J1 is located on the rear side of the F1-board.
See also the manual "Installation Components for RS 485 Networks"
26/757 E1 (Dx7-41-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 4-5
SAIA PCD Serie xx7
The serial communications interfaces
4.3.2
RS 232 with module PCD7.F120
This interface allows a connection to a modem.
Connector
designation
PCD2.M..
Space A
PCD7.F120
10
11
12
13
14
15
16
17
18
19
11
12
13
14
16
17
18
19
Cable
PGND
TX
RX
RTS
CTS
PGND
DTR
DSR
RSV
DCD
PGND
TX
RX
RTS
CTS
SGND
DTR
DSR
DCD
Connector
designation
10
11
11
Space A
12
13
12
13
PCD7.F120
14
15
16
14
17
18
19
17
18
PCD2.M..
16
19
Page 4-6
Cable
Modem
(DCE)
PGND
TX
RX
RTS
CTS
SGND
DTR
DSR
PGND
TX
RX
RTS
CTS
PGND
DTR
DSR
RSV
DCD
(RSV
Peripheral
(DTE)
DCD
→
 SAIA-Burgess Electronics Ltd.
Reserve)
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
4.3.3
The serial communications interfaces
20mA current loop with module PCD7.F130 *)
Terminal
Terminal
Terminal
Terminal
11:
13:
16:
18:
TS
TA
TC
TG
Transmitter Source
Transmitter Anode
Transmitter Cathode
Transmitter Ground
¦
¦
¦
¦
Terminal
Terminal
Terminal
Terminal
12:
14:
17:
19:
RS
RA
RC
RG
Receiver Source
Receiver Anode
Receiver Cathode
Receiver Ground
¦
¦
¦
¦
Transmitter
Receiver
Signal type
Required value
Nominal
value
Power for logic L (space)
Power for logic H (mark)
Neutral Voltage on TS, RS
Short circuit power on TS, RS
-20mA...
+12mA...
+16.0V...
+18mA...
0mA
20mA
+24.0V
+23.2mA
+ 2mA
+24mA+
+24.0V
+29.6mA
The idle state for data signals is "mark".
The user selects "active" or "passive" switching by means of wire jumpers on the screw terminals.
Connection examples for 20mA current loop
a) PCD1 or PCD2 active
PCD7.F130
(active)
Cable
Pin-Nr.
Peripheral
(passive)
11
Transmitter
13
Receiver
16
18
12
Receiver
14
17
Transmitter
19
*)
26/757 E1 (Dx7-41-E.DOC)
max. baud rate for 20mA current loop limited to 9600 Baud
 SAIA-Burgess Electronics Ltd.
Page 4-7
SAIA PCD Serie xx7
The serial communications interfaces
b) PCD1 or PCD2 passive
PCD7.F130
(passive)
Cable
Peripheral
(active)
Pin-Nr.
Receiver
11
13
Transmitter
16
18
12
14
Receiver
17
19
Transmitter
c) PCD1 or PCD2 transmitter and peripheral transmitter active
Cable
PCD7.F130
Peripheral
Pin-Nr.
11
13
Transmitter
(active)
16
Receiver
18
12
14
Receiver
17
19
Transmitter
(active)
Connector
PCD1.M137
PCD2.M..
Space A
PCD7.F130
Page 4-8
10
11
12
13
14
15
16
17
18
19
 SAIA-Burgess Electronics Ltd.
11
12
13
14
TS
RS
TA
RA
16
17
18
19
TC
RC
TG
RG
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
The serial communications interfaces
4.3.4
RS 485 electrically isoled with module PCD7.F150
Electrical isolation is achieved with 3 optocouplers and a DC/DC converter. Data signals D and /D are each protected against overvoltages by
a suppressor diode (10V). The line termination resistors can be connected
or disconnected with jumper J1.
Connection
PCD1.M137
PCD2.M..
PGND PGND
10
11
12
13
14
15
16
17
18
19
50 V DC
Space A
PCD7.F150
J1
CLOSED
PGND
OPEN
SBUS
11
12
13
14
RX - TX
/RX - //TX
16
17
18
19
D
/D
RX - TX
/RX - /TX
Bus RS 485
SGND (electrically isolated)
must be connected
to the cables shield
50 V DC
Block diagram
OPTO-0601
+5VE
Transmit
TXD
75176
Receive
RXD
330 Ohm
Driver
RS485
/D
150 Ohm
RTS
D
EN
330 Ohm
SGND
+5V
PGND
Note:
DC
DC
+5VE
SGND
SGND
Common mode voltage :
50 V, limited by capacitors between the data lines and SGND
(on the base module)
For the installation, see the manuel "Installation Components for
RS-485 Networks", order code 26/740 F.
26/757 E1 (Dx7-41-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 4-9
SAIA PCD Serie xx7
The serial communications interfaces
4.4 Interface no. 2 RS 232 with modules PCD2.F5..
With the PCD2.M127 and PCD2.M227 only.
Inserting the PCD2.F520 or PCD2.F530 module in space B of the
PCD2.M120 base unit configures interface no. 2 as RS 232.
Because of insufficient control lines, this interface is not suitable for the
connection of a modem. For modem connection please use interface no.
1 with PCD7.F120 (see section 4.3.2).
Peripheral
device
no. 3
Cable
C TS
R TS
RX
TX
S G ND
C TS
R TS
RX
TX
P G ND
39
38
37
36
34
33
32
31
39
38
37
36
35
34
33
32
31
30
P C D 2 .F 5 2 0/F 53 0
P C D 2 .M 1 2 7 /2 2 7
Instructions :
- The PCD2.F530 module is also equipped with a 6-digit display.
Page 4-10
 SAIA-Burgess Electronics Ltd.
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
The serial communications interfaces
4.5 Interface no. 3 RS 422/RS 485 with modules PCD2.F5..
With the PCD2.M127 and PCD2.M227 only.
Inserting the PCD2.F520, F530 or F550 module in space B of the
PCD2.M120 base unit configures interface no. 3 as RS 422/485.
• Connexion for RS 422
Point-to-point communications in all modes with the exception of MC4
and SS../SM.. (S-Bus) modes.
This RS 422 does not have any control lines. If they are required, the
PCD7.F110 module should be used in space A.
Connector
Cable
no. 2
39
38
37
36
34
33
32
31
39
38
37
36
35
34
33
32
31
30
P C D 2 .F 5 2 0/F 53 0 /F 5 5 0
J1
CLOSED
/R X
RX
/T X
TX
PG N D
/R X
RX
/T X
TX
SG N D
OPEN
Peripheral
device
P C D 2 .M 1 2 7/2 2 7
Instructions:
- Every pair of receiving lines for the RS 422 interface is closed with a
termination resistance of 150 Ω.
- This requires jumper J1 to be in the "OPEN" position (factory setting).
26/757 E1 (Dx7-41-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 4-11
SAIA PCD Serie xx7
The serial communications interfaces
• Connexion for RS 485
Connector
Bus RS485
GND
/RX-/TX
RX-TX
PGND
34
33
32
31
39
38
37
36
35
34
33
32
31
30
PCD2.F520/F530/F550
J1
CLOSED
/RX-/TX
RX-TX
PGND
39
38
37
36
OPEN
Bus cable
PCD2.M127/227
Selection of line termination resistors
First station
Middle stations
PCD2.M..
PCD2.M..
End station
PCD2.M..
PCD2.M..
+5 V
+5 V
36
36
37
37
Pull up
330 Ohm
/RX - /TX
37
Termination
resistor
150 Ohm
37
Bus RS485
RX - TX
36
Pull down
330 Ohm
36
Segment lenght max. 1200 m
max. 32 stations
Note :
• At the first and last stations jumper J1 must be set to the "CLOSED"
position.
• For all other stations, jumper J1 must be left in the "OPEN" position
(factory setting).
• See also the manual "Installation Components for RS485 Networks
Page 4-12
 SAIA-Burgess Electronics Ltd.
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
The serial communications interfaces
4.6 Definitions for serial interfaces
Signal types
TX
RX
RTS
CTS
DTR
DSR
RI
DCD
Transmit Data
Receive Data
Request To Send
Clear To Send
Data Terminal Ready
Data Set Ready
Ring Indicator
Data Carrier Detect
Data signal
Control/Message signal
Signal for RS 232
Signal type
Logical state
Required value
Nominal value
Data signal
0 (space)
1 (mark)
+ 3 V to +15 V
-15 V to - 3 V
+7 V
-7V
Control/
Message sinal
0 (off)
1 (on)
-15 V to - 3 V
+ 3 V to +15 V
-7V
+7 V
The idle state of data signals is "mark". The idle state for control/message
signals is "off".
Signal for RS 485 (RS 422) *)
no driver active
Mark
= Mark
5V
e.g. start bit
3V /TX
2V
TX
VOH
2.5V
VOL
VOZ
4V
Space
1V
0V
VOZ
VOH
VOL
=
=
=
0.9 V min. to 1.7 V max. (no driver active)
2 V min. (with load) to 5 V max. (without load)
-2 V to -5 V
*) RS 422 is in the "Mark" position in its inactive state.
26/757 E1 (Dx7-41-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 4-13
SAIA PCD Serie xx7
The serial communications interfaces
RS 422
Signal type
Logical state
Polarity
Data signal
0 (space)
1 (mark)
TX positive to /TX
/TX positive to TX
Control/
Message signal
0 (off)
1 (on)
/RTS positive to RTS
RTS positive to /RTS
Signal type
Logical state
Polarity
Data signal
0 (space)
1 (mark)
RX-TX positive to /RX-/TX
/RX-/TX positive to RX-TX
RS 485
Caution :
Page 4-14
The RS485 bus must be laid in a cable channel which
has been isolated from high power cables. Moreover,
in high interference environments, electrically isolating convertor modules of the type PCD7.T1.. should
be used...!
 SAIA-Burgess Electronics Ltd.
(Dx7-41-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
5. Digital input/output modules
To guarantee maximum protection against interference, all digital I/O
modules pass a stringent interference test, in accordance with IEC 801-4.
Modules can be plugged into any slot on the PCD1 or PCD2 I/O bus.
Caution :
Digital I/O modules should only be changed when the
PCD is disconnected from power source.
Input modules PCD2.E...
Types / characteristics
..E110
..B100*)
..E111
..E500
..E610
..E611
8
8
6
8
8
24 VDC
24 VDC
115-230VAC
24 VDC
24 VDC
No
No
Yes
Yes
Yes
Operating mode
Source
or sink
Source
or sink
Source
Source
or sink
Source
or sink
Input delay (ms.)
8
0.2
30
10
0.2/1.0
5.1
5.1
5.2
5.3
5.3
Number of inputs
Nominal input voltage
Electrically isolated
See chapter
Output modules PCD2.A...
Types/characteristic
..A200
..A220
..A250
..A300
..A400
..B100*)
..A410
Number of outputs
4
6
8
6
8
8
Relay 1)
Relay 2)
Relay 2)
MOSFET
MOSFET
MOSFET
Yes
Yes
Yes
No
No
Yes
(Make
contact)
(Make
contact)
(Make
contact)
Positive
switching
Positive
switching
Positive
switching
2A,
24VDC
0.5A,
24VDC
0.5A,
24VDC
Control element
Electrically isolated
Operating mode
Breaking capacity
2A, 250VAC 2A, 250VAC 2A, 48 VAC
2A, 50 VDC 2A, 50 VDC 2A, 50 VDC
Short-circuit
protection
No
No
No
No
No
No
See chapter
5.4
5.5
5.6
5.7
5.8
5.9
*)
1)
2)
26/757 E1 (Dx7-51-E.DOC)
PCD2.B100 input/output module - see chapter 5.10
Relays with integrated contact protection
Relays without contact protection
 SAIA-Burgess Electronics Ltd.
Page 5-1
SAIA PCD Serie xx7
Digital input/output modules
Notes:
Page 5-2
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
5.1 PCD2.E110/111
Digital input module,
electrically connected
Application
Low price input module for source or sink operation with 8 non-isolated
inputs. Suitable for most electronic and electro-mechanical switching
elements at 24 VDC.
Type PCD2.E111 has a short input delay of typ. 0.2 ms.
Technical information
Total inputs per module
8, non-isolated
Operating mode
Source or sink operation
Input voltage Ue (nominal)
E110 : 24 VDC, smoothed or pulsed
E111 : 24 VDC, smoothed with
ripple of max. 10 %
Special : 5 and 12 VDC on request
Input current
6 mA at 24 VDC
Typical input delay
E110 : 8 ms
E111 : 0.2 ms
Resistance to interference
as IEC 801-4
2 kV under capacitive coupling
(whole brunch of pairs)
Internal current consumption
(from 5 V bus)
1 to 24 mA
Presentation
Bus connector
Bus interface and
threshold switches
Input circuits
LEDs
Screw terminals
9
8
7
6
5
4
3
2
1
0
L E7 E6 E5 E4 E3 E2 E1 E0
Inputs E0 to E7
Input load resistors
User ground (-)
26/757 E1 (Dx7-51-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 5-3
SAIA PCD Serie xx7
Digital input/output modules
Input signal definition
30V
24V
15V
H
Because of the typical input delay
of 8 ms for type E110, full-wave
rectified DC is adequate for external supply.
L
Type E111 needs smoothed DC
voltage.
5V
0V
-30V
Input circuits and terminal assignment
Depending on external wiring, this module may be used for source or sink
operation.
Source operation or positive logic :
Input filter
4k7
Threshold
switch
LED
10k
I/O
Bus
Interface
E1
4k7
PCD1/2 Bus
Load resistors
10k
E0
9
8
1
L
0
E1 E0
Vin 24 VDC
Switch closed
(positve at input) :
Switch open
:
Input state "H" = LED on
Input state "L" = LED off
Sink operation or negative logic :
9
8
L
1
Vin 24 VDC
Page 5-4
0
E1 E0
Switch closed
(negative at input) :
Switch open
:
Input state "L" = LED off
Input state "H" = LED on
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
5.2 PCD2.E500
Digital input/output modules
Digital input module
for voltages from 115 to 230 VAC
Application
Module with 6 decoupled inputs for AC voltage. The inputs are designed for source operation and have a common "COM" connection.
Only the positive half-wave of the AC voltage is evaluated.
Technical information
Total inputs per module
6, electrically decoupled from
the processor (CPU)
Operating mode
Source operation
For any one module, all inputs are at
the same phase.
Input voltage (Ue)
115 to 230 VAC, 50 or 60 Hz,
sine form (80 to 250 VAC)
On/Off switching level
250V AC
H
80V AC
40V AC
L
0VAC
Input current
115 VAC 5 - 6 mA (idle current)
230 VAC 10 - 12 mA (idle current)
Input delay :
switching on
switching off
typ. 10 ms; max. 20 ms
typ. 20 ms; max. 30 ms
LED
supplied directly from input current
Resistance to interference
as IEC 801-4
4 kV, under direct coupling
2 kV, under capacitive coupling
(whole brunch of pairs)
Electrical isolation voltage
2000 VAC, 1 minute
Resistance isolation voltage
100 MΩ at 500 VDC
Optocoupler isolation voltage
2.5 kV
Internal current consumption
(from 5 V bus)
< 1 mA
26/757 E1 (Dx7-51-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 5-5
SAIA PCD Serie xx7
Digital input/output modules
Installation instructions
For safety reasons, extra-low voltage (up to 50V) and low voltage (50 to
250V) should not be connected to the same module.
If a PCD1 or a PCD2 system module is connected to low voltage (50 to
250V), approved low-voltage components must be used for any elements
which are electrically coupled to that system.
Presentation
Bus connector
Bus interface,
optocoupler and
threshold switches
Input voltage distributor
LEDs
Screw terminals
9
8
COM COM
7
6
5
4
3
2
1
0
E5
E4
E3
E2
E1
E0
Inputs E0 to E5
Common connection of
the 6 inputs
Page 5-6
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
Input circuit and terminal identification
150nF
PCD1/2 Bus
I/O-Bus Interface
150nF
150nF
9
8
7
6
COM COM
5
4
3
2
1
0
E5 E4 E3 E2 E1 E0
Switch closed: Signal status 'H' = LED on
Switch open : Signal status 'L' = LED off
leer
Phase 115 - 230V 50/60 Hz *)
Zero conductor *)
*) or interchangeable, if the rules permit this
*)
26/757 E1 (Dx7-51-E.DOC)
Phase and zero conductor (neutral) can be interchangeable, if
the rules permit this.
 SAIA-Burgess Electronics Ltd.
Page 5-7
SAIA PCD Serie xx7
Digital input/output modules
Notes:
Page 5-8
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
5.3 PCD2.E610/611
Digital input module,
with electrical isolation
Application
Input module with electrical isolation for source or sink operation with
8 inputs. Suitable for most electronic and electro-mechanical switching
elements at 24 VDC.
Type PCD6.E611 has a short input delay.
Technical information
From version "B" (30.06.97) some values have changed
Total inputs per module
8, electrically isolated by
optocouplers
Operating mode
Source or sink operation
Input voltage Ue (nominal)
E610 : 24 VDC, smoothed or pulsed
E611 : 24 VDC, smoothed with
ripple of max. 10 %
Special : 5 and 48 VDC on request
30V
24V
15V
H
Because of the typical input delay
of 10 ms for type E610, full-wave
rectified DC is adequate for external supply.
L
Typ E611 needs smoothed DC
voltage.
5V
0V
-30V
Supply voltage (Ue)
for source operation : min. 15 V
for sink operation : min. 18 V
Input current
(at 24 VDC)
Version:
"A"
for source op.: 12 mA
for sink op.: 5.5 mA
"B"
5.0 mA
3.7 mA
Typical input delay
(low-high / high-low)
Version:
E610 :
E611 :
"B"
10/10 ms
0.2/1.0 ms
Resistance to interference
as IEC 801-4
4 kV under direct coupling
2 kV under capacitive coupling
(whole brunch of pairs)
Electrical isolation voltage
1000 VAC, 1 minute
Optocoupler isolation voltage
2.5 kV
Internal current consumption
(from 5 V bus)
1 to 24 mA
26/757 E1 (Dx7-51-E.DOC)
 SAIA-Burgess Electronics Ltd.
"A"
8/8 ms
0.1/0.3 ms
Page 5-9
SAIA PCD Serie xx7
Digital input/output modules
Presentation
Bus connector
Bus interface and
threshold switches
Input circuits
Electrical isolation by
optocouplers
LEDs
Screw terminals
9
8
7
6
5
4
3
2
1
0
L E7 E6 E5 E4 E3 E2 E1 E0
Inputs E0 to E7
Input load resistors
User ground (-)
Input circuits and terminal assignment
Depending on external wiring, this module may be used for source or sink
operation.
Source operation or positive logic:
Optocoupler
+5V
6k6
Threshold
switch
LED
11k
E1
+5V
6k6
9
11k
8
1
L
I/O
Bus
Interface
PCD1/2 Bus
Load resistors
E0
0
E1 E0
Switch closed
(positive at input) :
Switch open
:
Vin 24 VDC
Input state "H" = LED on
Input state "L" = LED off
Sink operation or negative logic:
9
8
L
1
Vin 24 VDC
Page 5-10
0
E1 E0
Switch closed
(negative at input) :
Switch open
:
 SAIA-Burgess Electronics Ltd.
Input state "H" = LED off
Input state "L" = LED on
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
5.4 PCD2.A200
Digital input/output modules
Digital output module with 4 relay contacts
(with contact protection)
Application
The module contains 4 relays with normally-open contacts for direct or
alternating current up to 2 A, 250 VAC. It is especially suited wherever
perfectly isolated AC switching circuits must be controlled with infrequent switching (see installation notes on page 5-13). The relay contacts
are protected by a varistor and an RC spark quenching.
Technical information
Total outputs per module
4, electrically isolated,
normally open contacts (NO)
Type of relay (typical)
REO 30024, SCHRACK
Switch rating
(contact lifetime)
2 A, 250 VAC AC1
(0.7 x 106 operations)
1 A, 250 VAC AC11
(106 operations)
2 A, 50 VDC DC1
(0.3 x 106 operations)
1 A, 24 VDC DC11
(0.1 x 106 operations)
Relay coil supply
2)
3)
1) 3)
nominal 24 VDC, smoothed or
pulsed, 8 mA per relay
Voltage tolerance dependent
on ambient temperature
20°C :
30°C :
40°C :
50°C :
Typical output delay
5 ms on 24 VDC
Resistance to interference
as IEC 801-4
4 kV under direct coupling
2 kV under capacitive coupling
(whole brunch of pairs)
Internal current consumption
(from 5 V bus)
1 to 15 mA
1)
2)
3)
26/757 E1 (Dx7-51-E.DOC)
17.0 .. 35 VDC
19.5 .. 35 VDC
20.5 .. 32 VDC
21.5 .. 30 VDC
With external protective diode
With reverse voltage protection
These ratings are not UL-listed !
 SAIA-Burgess Electronics Ltd.
Page 5-11
SAIA PCD Serie xx7
Digital input/output modules
Presentation
Bus connector
Bus interface
Relays
A3
A2
A1
A0
Contact protection
LEDs
Screw terminals
9
8
7
6
A3
5
4
A2
3
2
A1
1
0
A0
Relay contacts A0 to A3
Supply 24 VDC for relay coils
Output diagram and terminal assignment
PCD1/2
Bus
I/O
Bus
Interface
VDR = 250VAC/400A
AddressLED A3
Contact protection
C = 10 nF
R = 33 Ohm
Relay contacts
9
8
7
6
A3
24 VDC
1
0
A0
Terminals
Isolated contacts
Relay energized (contact closed)
:
LED on
Relay reset (contact open)
:
LED off
24 VDC must be connected to terminals "+" and "-".
If the relay contact is open, the current leakage through the contact protector is 0.7 mA (at 230 V/50 Hz). This should be taken into account for
the smaller AC loads.
Advice : if it is the case, use a PCD2.A220 module , without contact
protection.
Page 5-12
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
Installation notes
For reasons of safety it is not allowed that low voltages (up to 50V) and
higher voltages (50..250V) are connected to the same module.
If a PCD1 or a PCD2 system module is connected to a higher voltage
(50.. 250V), higher voltage approved components have to be used for all
elements which are galvanically connected to the system.
Using higher voltage (50... 250V), all connections to the relay contacts
are to be connected on the same circuit. That means at one point in such
a way that they are all protected against one AC-phase by only one fuse.
Each load circuit may be protected individually by a fuse of max. 2A.
Load
26/757 E1 (Dx7-51-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 5-13
SAIA PCD Serie xx7
Digital input/output modules
Switching inductive loads
Because of the physical properties of inductivity, it is not possible to
disconnect inductance without interference. This interference must be
minimized as far as possible. Although the PCD is immune to this interference, there are other devices which may be susceptible.
Is should be noted here that, as part of the harmonization of standards
throughout the EU, the EMC standards are valid from 1996 (EMC
Directive 89/336/EG). Two principles should therefore be emphasized :
1)
THE PROTECTION AGAINST INTERFERENCES FROM
INDUCTIVE LOADS IS IMPERATIVE.
2)
INTERFERENCE SHOULD BE ELIMINATED AS CLOSE AS
POSSIBLE TO ITS SOURCE.
It is therefore recommended that a protection circuit should be fitted at
the load (often available as normal components on standardized contactors and valves).
When switching direct voltage it is urgently recommended that a
recovery diode is fitted above the load. This should even take place
when, theoretically, an Ohmic load is switched.
In practice, there will always be a proportion which is inductive (connection cable, resistance coil, etc.). In this case it should be noted that the
switch-off time will be longer :
Ta approx. L/RL ∗ √(RL ∗ IL/0.7)
For direct voltage the transistor output modules are recommnended.
Page 5-14
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
Relay manufacturer’s information on RC unit dimensioning.
Wiring contact protection :
Dimensioning guide for
RC combinations
The purpose of contact protection wiring
is to suppress switch arcing ("sparks") and
thereby prolong the lifetime of the contacts. All protection wiring has disadvantages as well as advantages. The diagram
opposite should simplify the search for a
favorable solution in each case. For the
cancellation of arcing by means of an RC
unit, see example.
Load
The value for C is the direct result of the
switching current. The resistance value R
can be established by drawing a straight
line through the corresponding points on
the I and U curves and reading off the resistance at the intersection with the R
curve.
When switching off load circuits with inductive components (e.g. relay coils and
magnet coils) the interruption of current
results in overvoltage (standard inductance) at the switching contacts. This may
amount to many times the operating voltage
and so threatens the insulation of the load
circuit. The resultant breaking spark leads
to rapid wear of the relay contacts. For
this reason contact protection wiring is
particularly important with inductive load
circuits.
26/757 E1 (Dx7-51-E.DOC)
Example :
U = 100V; I = 1A
C is found directly as 0.1 µF
R = 10 Ω ( from line trough
R scale )
 SAIA-Burgess Electronics Ltd.
Page 5-15
SAIA PCD Serie xx7
Digital input/output modules
Notes:
Page 5-16
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
5.5 PCD2.A220
Digital input/output modules
Digital output module with 6 relay contacts
(without contact protection)
Application
The module contains 6 relays with normally-open contacts for direct or
alternating current up to 2 A, 250 VAC. It is especially suited wherever
perfectly isolated AC switching circuits must be controlled with infrequent switching (see installation notes on page 5-19). On this module
there is no contact protection available. 3 relay contacts have one common terminal (see output diagramm).
Technical information
Total outputs per module
3 + 3, with common terminal,
normally open contacts (NO)
Type of relay (typical)
REO 30024, SCHRACK
Switch rating
(contact lifetime)
2 A, 250 VAC AC1
(0.7 x 106 operations)
1 A, 250 VAC AC11
(106 operations)
2 A, 50 VDC DC1
(0.3 x 106 operations)
1 A, 24 VDC DC11
(0.1 x 106 operations)
Relay coil supply
2)
3)
1) 3)
nominal 24 VDC, smoothed or
pulsed, 8 mA per relay
Voltage tolerance dependent
on ambient temperature
20°C :
30°C :
40°C :
50°C :
Typical output delay
5 ms on 24 VDC
Resistance to interference
as IEC 801-4
4 kV under direct coupling
2 kV under capacitive coupling
(whole brunch of pairs)
Internal current consumption
(from 5 V bus)
1 to 20 mA
1)
2)
3)
26/757 E1 (Dx7-51-E.DOC)
17.0 .. 35 VDC
19.5 .. 35 VDC
20.5 .. 32 VDC
21.5 .. 30 VDC
With external protective diode
With reverse voltage protection
These ratings are not UL-listed !
 SAIA-Burgess Electronics Ltd.
Page 5-17
SAIA PCD Serie xx7
Digital input/output modules
Presentation
Bus connector
Bus interface
A3
A0
Relays
A5
A2
A4
LEDs
A1
Screw terminals
9
8
7
6
5
4
3
2
1
0
A5 A4 A3 3-5 0-2 A2 A1 A0
Relay contacts A0 to A5
Supply 24 VDC for relay coils
Output diagram and terminal assignment
PCD1/2
Bus
I/O
Bus
Interface
Address
LED A5
Relay contacts
9
8
7
6
5
4
3
2
1
0
A5 A4 A3 3-5 0-2 A2 A1 A0
24 VDC
Terminals
3 relay contacts have
one common terminal
Relay energized (contact closed)
:
LED on
Relay reset (contact open)
:
LED off
24 VDC must be connected to terminals "+" and "-".
Page 5-18
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
Installation notes
For reasons of safety it is not allowed that low voltages (up to 50V) and
higher voltages (50..250V) are connected to the same module.
If a PCD1 or a PCD2 system module is connected to a higher voltage
(50..250V), higher voltage approved components have to be used for all
elements which are galvanically connected to the system.
Using higher voltage (50...250V), all connections to the relay contacts are
to be connected on the same circuit. That means in such a way that they
are all protected against one AC-phase by only two fuses.
26/757 E1 (Dx7-51-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 5-19
SAIA PCD Serie xx7
Digital input/output modules
Switching inductive loads
Because of the physical properties of inductivity, it is not possible to
disconnect inductance without interference. This interference must be
minimized as far as possible. Although the PCD is immune to this
interference, there are other devices which may be susceptible.
Is should be noted here that, as part of the harmonization of standards
throughout the EU, the EMC standards are valid from 1996 (EMC
Directive 89/336/EG). Two principles should therefore be emphasized :
1)
THE PROTECTION AGAINST INTERFERENCES FROM
INDUCTIVE LOADS IS IMPERATIVE.
2)
INTERFERENCE SHOULD BE ELIMINATED AS CLOSE AS
POSSIBLE TO ITS SOURCE.
It is therefore recommended that a protection circuit should be fitted at
the load (often available as normal components on standardized contactors and valves).
When switching direct voltage it is urgently recommended that a
recovery diode is fitted above the load. This should even take place
when, theoretically, an Ohmic load is switched.
In practice, there will always be a proportion which is inductive (connection cable, resistance coil, etc.). In this case it should be noted that the
switch-off time will be longer :
Ta approx. L/RL ∗ √(RL ∗ IL/0.7)
For direct voltage the transistor output modules are recommnended.
Page 5-20
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Digital input/output modules
Relay manufacturer’s information on RC unit dimensioning.
Wiring contact protection :
Dimensioning guide for
RC combinations
The purpose of contact protection wiring
is to suppress switch arcing ("sparks") and
thereby prolong the lifetime of the contacts. All protection wiring has disadvantages as well as advantages. The diagram
opposite should simplify the search for a
favorable solution in each case. For the
cancellation of arcing by means of an RC
unit, see example.
Load
The value for C is the direct result of the
switching current. The resistance value R
can be established by drawing a straight
line through the corresponding points on
the I and U curves and reading off the resistance at the intersection with the R
curve.
When switching off load circuits with inductive components (e.g. relay coils and
magnet coils) the interruption of current
results in overvoltage (standard inductance) at the switching contacts. This may
amount to many times the operating voltage
and so threatens the insulation of the load
circuit. The resultant breaking spark leads
to rapid wear of the relay contacts. For
this reason contact protection wiring is
particularly important with inductive load
circuits.
26/757 E1 (Dx7-51-E.DOC)
Example :
U = 100V; I = 1A
C is found directly as 0.1 µF
R = 10 Ω ( from line trough
R scale )
 SAIA-Burgess Electronics Ltd.
Page 5-21
SAIA PCD Serie xx7
Digital input/output modules
Notes
Page 5-22
 SAIA-Burgess Electronics Ltd.
(Dx7-51-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
6. Analogue input/output modules
PCD2.W10x
Fast input module for general application.
4 channels, 12 bit resolution, with signal ranges of
0...+10 V, -10...0 V, -10...+10 V or
0...+20 mA, -20...0 mA, -20...+20 mA.
PCD2.W11x
Input module for registering absolute temperatures by
means of Pt 100, Ni 100, Pt 1000 or Ni 1000 detectors.
The characteristic temperature curves are linearized
independently in the module. Resolution is 12 bits.
PCD2.W2x0
Fast input module with < 50 µs conversion time for
standard use.
8 channels of 10 bits each for 0...10 V, 0...20 mA or
resistive temperature sensors Pt/Ni 1000, according to
version.
PCD2.W4x0
Very fast output module with < 5 µs conversion time
for general applications, wherever 8 bit resolution is
sufficient.
4 channels for 0...10V, 0...20 mA or 4...20 mA,
according to version..
PCD2.W5x0
Combined high speed analogue input/output module
with 2 inputs and 2 outputs, all with 12 bit resolution.
The module is suitable for precise high speed
applications.
Caution :
26/757 E1 (Dx7-61-E.DOC)
W modules should only be changed when
PCD1 or PCD2 is disconnected from power source.
 SAIA-Burgess Electronics Ltd.
Page 6-1
Analogue input/output modules
SAIA PCD Serie xx7
Notes:
Page 6-2
 SAIA-Burgess Electronics Ltd.
(Dx7-61-E.DOC)
26/757 E1
SAIA PCD Serie xx7
6.1 PCD2.W10x
Analogue input/output modules
Analogue input module
4 channels, each with 12 bit resolution
Application
Fast module for general application to register analogue signals, with a
conversion time of ≤ 30 µs and 12 bit resolution.
Module overview
PCD2.W100 : 4 channels for signals 0...10 V
Unipolar *) :
0 V...+10 V or -10 V...0 V
Bipolar *) :
-10 V...+10 V
Input resistance :
> 10 MΩ
PCD2.W105 : 4 channels for signals 0...20 mA
Unipolar *) :
0 mA...+20 mA or -20 mA...0 mA
Bipolar *) :
-20 mA...+20 mA
Circuit resistance (Rshunt) : 100 Ω / 0.1 %
*) Unipolar - bipolar, switchable with jumper.
Technical data
Input ranges
see above « module overview »
Potential separation
no
Resolution
(digital representation)
12 bits
(0...4095)
Measuring principle
differential
Conversion time
≤ 30 µs
Input resistance
W100 : ≥ 10 MΩ
W105 : 100 Ω / 0.1 %
Accuracy at 25°C
(referring to measured value)
W100 : ± 0.1% + ± 1 LSB
Bipolar
W100 : ± 0.05% + ± 1 LSB
Unipolar
W105 : ± 0.2% + ± 1 LSB
Unipolar/Bipolar
Repeating accuracy
± 1 LSB
26/757 E1 (Dx7-61-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 6-3
SAIA PCD Serie xx7
Analogue input/output modules
Common mode voltage range
CMR
W100 :
W105 :
± 11 V
± 8V
Common mode rejection
CMRR
≥ 70 dB
Temperature error (0...+55°C)
W100 :
W105 :
± 0.2% + ± 2 LSB
± 0.3% + ± 2 LSB
Overvoltage protection
W100 :
± 60 VDC (permanent)
Overcurrent protection
W105 :
± 50 mA (permanent)
Protection against interference
voltages capacitance coupling
according to IEC 801-4
± 1 kV with cables not shielded
± 2 kV with cables shielded
Time constant of input filter
3 ms
Current consumption :
internal from 5 V bus
internal from 24 V bus
45 mA
15 mA
Presentation
Bus connector
Bus interface
± 15 V
Differential amplifier
A/D converter
SW1
Analogue multiplexer
Jumper
U B
U : unipolar
B : bipolar
Input filter
(overvoltage protection)
Screw terminals
9
8
7
6
-E3+
5
4
-E2+
3
2
-E1+
1
0
-E0+
Caution : On this module there are components between
the input filter and the bus connector which
are susceptible to electrostatic discharges !
Page 6-4
 SAIA-Burgess Electronics Ltd.
(Dx7-61-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Block diagram
CHANNEL SELECTION
ANALOGUE INPUTS
UNIPOLAR
BUSY FLAG
D
2
+E1
GAIN
3
-E1
BIPOLAR
12 BITS
MUX
Input
Offset
4
+E2
A
5
Bipolar
Offset
READ
DATA
-E2
V+
6
+E3
DATA
PCD1/2 - Bus
(SET/RES O2)
GAIN = 1...5
1
-E0
I/O-Bus-Interface
+E0
WRITE
START CONVERSION
0
DC
7
-E3
8
9
+15 V
DC
+5 V
-15 V
Shunt for Current version
GND
+24 V
Wiring for positive unipolar or bipolar analogue inputs
+E
-E
(PGND)
PCD2.W105 : 100 Ohm / 0.1%
Wiring for negative unipolar analogue inputs
+E
-E
(PGND)
PCD2.W105 : 100 Ohm / 0.1%
Caution :
26/757 E1 (Dx7-61-E.DOC)
All unused inputs must be connected to logic ground.
 SAIA-Burgess Electronics Ltd.
Page 6-5
SAIA PCD Serie xx7
Analogue input/output modules
Module connection
9
User
ground
Note :
Page 6-6
8
7
6
5
4
3
2
1
0
-E3
+E3
-E2
+E2
-E1
+E1
-E0
+E0
Input no. 3
Input no. 2
Input no. 1
Input no. 0
The negative connections " - " of each input are not joined
to the user ground.
 SAIA-Burgess Electronics Ltd.
(Dx7-61-E.DOC)
26/757 E1
SAIA PCD Serie xx7
6.2 PCD2.W11x
Analogue input/output modules
Analogue input module for resistance
thermometer Pt 100/1000 or Ni 100/1000,
4 channels, each with 12 bit resolution
Application
Fast, convenient module for registering absolute temperatures in the
range -50...+150°C by means of resistance thermometer. (2-wire-type
connection with null balance). The characteristic temperature curves are
linearized independently in the module. Resolution is 12 bits.
Module overview
PCD2.W110
4 analogue inputs for temperature measurement
using Pt 100 detectors, according to IEC 751.
PCD2.W111
4 analogue inputs for temperature measurement
using Ni 100 detectors, according to DIN 43 760.
PCD2.W112
4 analogue inputs for temperature measurement
using Pt 1000 detectors, according to IEC 751.
PCD2.W113
4 analogue inputs for temperature measurement
using Ni 1000 detectors, according to DIN 43 760.
General technical data
Number of channels
4
Potential separation
no
Resolution
(digital representation)
12 bits
(0...4095)
Measuring principle
differential
Conversion time
< 30 µs
Time between 2 measurements
≥ 1 ms
Temperature error
+10...+30°C :
0...+55°C :
26/757 E1 (Dx7-61-E.DOC)
 SAIA-Burgess Electronics Ltd.
max. ± 0.4 °C
max. ± 1 °C
Page 6-7
SAIA PCD Serie xx7
Analogue input/output modules
Repeating accuracy
(more than one measurement
on the same module under the
same conditions.)
± 2 LSB
Detector type
2 wires
Linearization
integral
Current sources
1 for each channel
External supply
none
Offset adjustment
separate for each channel
(allows null balancing
dependent on cable length)
Sensitivity
20.475 LSB/°C (4095 ÷ 200) or
0.0488 °C/LSB (200 ÷ 4095)
Current consumption :
internal from 5 V bus
internal from 24 V bus
45 mA
30 mA (W110/111)
20 mA (W112/113)
Technical data of additional modules (substitution modules)
Page 6-8
PCD2.W110
Current sources
Measuring range
Accuracy of measurement
4 inputs for Pt 100 detectors
2 mA
-50°C...+150°C
better than 0.2°C
PCD2.W111
Current sources
Measuring range
Accuracy of measurement
4 inputs for Ni 100 detectors
2 mA
-50°C...+150°C
better than 0.4°C
PCD2.W112
Current sources
Measuring range
Accuracy of measurement
4 inputs for Pt 1000 detectors
0.2 mA
-50°C...+150°C
better than 0.2°C
PCD2.W113
Current sources
Measuring range
Accuracy of measurement
4 inputs for Ni 1000 detectors
0.2 mA
-50°C...+150°C
better than 0.4°C
 SAIA-Burgess Electronics Ltd.
(Dx7-61-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Accuracy of measurement
The curves below show the maximum measuring error (measuring and
repeating accuracy).
Each channel is tuned to the minimum and the maximum value :
-50°C
+150°C
→
→
0
+ 2 LSB
4095 - 2 LSB
For both these values the measuring error = 0.
Typical linearity error for W110 / W112 (Pt 100 / Pt 1000)
Deviation (LSB)
+6
+5
+4
+3
+2
+1
0
+1
+2
+3
+4
+5
+6
Measurement
-50
0
0
1024
+50
2047.5
+100
3071
+150
4095
°C
LSB
Typical linearity error for W111 / W113 (Ni 100 / Ni 1000)
Deviation (LSB)
+6
+5
+4
+3
+2
+1
0
+1
+2
+3
+4
+5
+6
Measurement
-50
0
0
1024
If cable breaks
If short-circuited
26/757 E1 (Dx7-61-E.DOC)
+50
2047.5
→
→
+100
3071
+150
4095
Measuring value
Measuring value
 SAIA-Burgess Electronics Ltd.
°C
LSB
4095
0
Page 6-9
SAIA PCD Serie xx7
Analogue input/output modules
Presentation
Each module consists of 2 individual modules :
• Basic module with input filters, A/D converter, inputs/outputs interface. Same module with same components for all 4 options.
• Plug-on substitution modules with switching circuit for the production
of -15 V, current sources, linearization. Each of the 4 options has its
own substitution module, i.e. a module with different components.
The user has access to the 4 potentiometers for adjusting the offset of
each individual channel. This can be very useful for readjusting the null
(at -50°C) for long measurement connections.
Caution :
All modules are assembled and balanced in
the factory as a pair (basic module with substitution module). The substitution
modules should not be exchanged.
The 4 potentiometers for setting the amplification are not accessible to
the user when they have been assembled and should not be adjusted.
Substitution module
Not user
accessible
Basic module
Adjustement
of offset
Page 6-10
 SAIA-Burgess Electronics Ltd.
(Dx7-61-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Presentation
Bus connector
Bus interface
+15 V
A/D converter
Adjustment of amplification
Digital value
= 4095
Temperature
= +150°C
(not for users)
Analogue multiplexer
Input amplifier
Adjustment of offset
Digital value
= 0
Temperature
= -50°C
9
8
7
6
-E3+
5
4
-E2+
3
2
-E1+
1
0
-E0+
Input filter
Screw terminals
Basic module
-15 V
J1
J2
Current sources and
linearization
Substitution module
Caution :
26/757 E1 (Dx7-61-E.DOC)
On these modules there are components
which are susceptible to electrostatic
discharges !
 SAIA-Burgess Electronics Ltd.
Page 6-11
SAIA PCD Serie xx7
Analogue input/output modules
Block diagram
Subsitution module
V REF
Icc 0
+15 V
V REF
Icc 1
DC
V REF
Icc 2
DC
V REF
-15 V
Icc 3
LINEARISATION
CHANNEL SELECTION
BUSY FLAG
1
-E0
Offset 0
Gain 0
2
+E1
DATA
PCD1 - PCD2 - Bus
+E0
WRITE
I/O-Bus-Interface
START CONVERSION
0
READ
DATA
3
-E1
12 BITS
Offset 1
Gain 1
4
+E2
+5 V
5
GND
-E2
V REF
Offset 2
+24 V
Gain 2
6
+E3
D
7
9
PGND
Offset 3
V+
+15 V
A
MUX
-E3
Gain 3
Module connection
9
8
User
ground
Note :
7
6
5
4
3
2
1
0
-E3
+E3
-E2
+E2
-E1
+E1
-E0
+E0
Input no. 3 Input no. 2 Input no. 1 Input no. 0
The negative connections « - » of each input should
always be joined to the user ground.
Wiring
Caution :
Page 6-12
Any unused connections should be shortcircuited: connect each + E to - E.
 SAIA-Burgess Electronics Ltd.
(Dx7-61-E.DOC)
26/757 E1
SAIA PCD Serie xx7
6.3 PCD2.W2x0
Analogue input/output modules
Analogue input module
8 channels, each with 10 bit resolution
Application
With its short conversion time of <50 µs, this module is universally
suitable for recording analogue signals. Limitations occur only in the
case of very small signals, such as arise when resistive temperature
sensors Pt 100 or thermoelements are used.
Module overview
PCD2.W200 : 8 channels for signals 0...10 V
PCD2.W210 : 8 channels for signals 0...20 mA
PCD2.W220 : 8 channels for resistive temperature sensors Pt/Ni 1000
Technical data
Input ranges
see above « module overview »
Potential separation
no
Resolution
(digital representation)
10 bits
(0...1023)
Measuring principle
not differencial
Input resistance
0...10 V :
0...20 mA :
Pt/Ni 1000 :
Accuracy (referring to
measured value)
± 1 LSB
Repeating accuracy
(under same conditions)
within ± 1 LSB
Temperature error
± 0.3 % (± 3 LSB) across
temperature range 0...+55°C
Overvoltage protection
Overcurrent protection
W200/220 :
W210 :
Protection against interference
voltages according to IEC 801-4
± 1 kV with cables not shielded
± 2 kV with cables shielded
Time constant of
input filter
W200 :
typically 5 ms
W210/W220 : typically 1 ms
W220 :
typically 10 ms from
version B, modif. 1
Current consumption :
internal from 5 V bus
internal from 24 V bus
26/757 E1 (Dx7--62-E.DOC)
200 kΩ / 0.15 %
125 Ω / 0.1 %
see terminal contacts
± 50 VDC
± 40 mA
8 mA
5 mA (W200/210)
16 mA (W220)
 SAIA-Burgess Electronics Ltd.
Page 6-13
SAIA PCD Serie xx7
Analogue input/output modules
Presentation
Bus connector
Bus interface
Reference voltage (and source)
A/D converter and multiplexer
Input filter
Screw terminals
9
8
7
6
E7 6
5
5
4
4
3
3
2
2
1
1
0
E0
Caution :
This module contains components between
the input filter and the bus connector which
are sensitive to electrostatic discharges !
BUSY (addr. 15)
A
DATA OUT
DATA
MUX
D
7K5
READ
WRITE
A/D act. (addr. 15)
GND
ADDR
Clock
Voltage
Source
10.000 V
Ref.
Voltage
2.500 V
Channel address 0.. 7
PCD1 - PCD2 - Bus
10 bits serial
Bus-Interface
E0
E1
E2
E3
E4
E5
E6
E7
INPUT FILTER
ANALOGUE INPUTS
Block diagram
+5 V
..W220 only
GND
+24 V
Page 6-14
 SAIA-Burgess Electronics Ltd.
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Module connection
For 0 .. 10 V (W200)
and 0 .. 20 mA (W210)
and Pt/Ni 1000 (W220)
9
8
7
6
5
4
3
2
1
0
max. 20cm
E7 E 6 E5 E4 E3 E2 E1 E0
Earthing bar
26/757 E1 (Dx7--62-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 6-15
SAIA PCD Serie xx7
Analogue input/output modules
Temperature measurement with Pt 1000
In the temperature range -50°C to +200°C the following formula can be
used for working to an accuracy of ±1 % (±1.5°C). Repeating accuracy is
significantly higher.
DV
T [°C] =
- 261.8
-3
2.08 - (0.509 x 10 x DV)
T = temperature in °C
Example 1 :
DV = digital value (0...1023)
digital value DV = 562
temperature T in °C ?
562
T [°C] =
- 261.8 = 51.5°C
-3
2.08 - (0.509 x 10 x 562)
2.08 x (261.8 + T)
DV =
1 + (0.509 x 10-3 x (261.8 + T))
DV = digital value (0...1023)
Example 2 :
T = temperature in °C
preset temperature T = -10°C
appropriate digital value DV ?
2.08 x (261.8 - 10)
DV =
= 464
-3
1 + (0.509 x 10 x (261.8 - 10))
Tables for Pt 1000 and Ni 1000 are also available on request.
Page 6-16
 SAIA-Burgess Electronics Ltd.
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
6.4 PCD2.W4x0
Analogue input/output modules
Analogue output module
4 channels, each with 8 bit resolution
Application
Rapid output module with 4 output channels of 8 bits respectively.
Different output signals can be reversed with the aid of insertable
jumpers (type ..W410). Suited for processes in which a large number
of actuators must be controlled such as in the chemical industry and
building automation.
Modules overview
PCD2.W400 : Single signal version for 0...10 V.
4 output channels of 8 bits respectively.
PCD2.W410 : Universal module with 4 output channels of 8 bits respectively, signals can be selected from 0...10 V,
0...20 mA or 4...20 mA
Technical data
Number of output channels
4, short-circuit protected
Signal ranges
0...10 V
0...10 V *)
0...20 mA
4...20 mA
..W400 :
..W410 :
¦ selectable
¦ with
¦ jumpers
Resolution
(digital representation)
8 bits
(0...255)
D/A conversion time
< 5 µs
Load impedance
for 0...10 V :
for 0...20 mA :
for 4...20 mA :
≥ 3 kΩ
0...500 Ω
0...500 Ω
Accuracy (referring to
output value)
for 0...10 V :
for 0...20 mA :
for 4...20 mA :
1 % ± 50 mV
1 % ± 0,2 mA
1 % ± 0,2 mA
Residual ripple
for 0...10 V :
for 0...20 mA :
for 4...20 mA :
< 15 mV pp
< 50 µA pp
< 50 µA pp
Temperature error
typ. 0.2 % within the range 0...50°C
*)
26/757 E1 (Dx7--62-E.DOC)
Factory setting
 SAIA-Burgess Electronics Ltd.
Page 6-17
SAIA PCD Serie xx7
Analogue input/output modules
Protection against interference
voltages capacitive coupling
according to IEC 801-4
1 kV with cables not shilded
2 kV with cables shielded
Current consumption :
internal from 5 V bus
internal from 24 V bus
1 mA
30 mA
External 24 VDC supply voltage
max. 0.1 A (only type ..W410 for
current outputs)
Tolerance as power supply for
PCD1.M1.. or PCD2.M1..
Presentation
Bus connector
Reference voltage
Bus interface
4
Offset jumper J1
(only for type ..W410)
Position "0" : 0...10 V or 0...20 mA
Position "4" : 2...10 V or 4...20 mA
0
D/A converter
3 2 1 0
9
8
7
6
A3
5
4
A2
3
V
Output amplifier 0...10 V
C
Jumper J2 for voltage / current
(only for type ..W410)
Position "V" : Voltage output
Position "C" : Current output
2
1
A1
0
External supply to V/C converter
(only for type ..W410)
A0
Screw terminals
Reinsertion of jumpers
Caution :
The entire board contains components
which are susceptible to electrostatic
discharging.
Factory setting of jumpers (type ..W410) :
"V" :
voltage output
"0" :
range 0...10 V
Page 6-18
 SAIA-Burgess Electronics Ltd.
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Block circuit diagram for PCD2.W410
PCD1 - PCD2 - Bus
DATA
0
D
1
D
2
D
3
D
WRITE
ADDR
I/O
Bus
Interface
V+
A
A
A
V
JUMPER J2
A
VOLTAGE
REFERENCE
V
VOLTAGE
CONTROLLED
CURRENT
SOURCE
C
C
+5V
GND
9
8
7
6
A3
SUPPLY
24 VDC
26/757 E1 (Dx7--62-E.DOC)
 SAIA-Burgess Electronics Ltd.
5
4
A2
3
2
1
A1
0
A0
ANALOG OUTPUTS
Page 6-19
SAIA PCD Serie xx7
Analogue input/output modules
Module connection (see user program example) :
Supply
9
8
24 VDC
Analogue outputs
7
6
5
4
3
2
1
0
A3
A2
A1
A0
51
50
49
(48)
Connection for 0...10 V (terminal for output O 50) :
D
4 (A2) = O50
A
5
U
R ≥ 3 kΩ
Connection for 0...20 mA or 4...20 mA
(selectable with jumpers on type ..W410) :
D
A
VOLTAGE
CONTROLLED
CURRENT
SOURCE
+ 24 VDC
4 (A2) = O50
5
I
R = 0.. 500Ω
An external 24 VDC supply voltage is required for current outputs.
Page 6-20
 SAIA-Burgess Electronics Ltd.
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
6.5 PDC2.W5x0
Analogue input/output modules
Analogue input/output module
2 + 2 channels, each with 12 bit resolution
Application
Combined high speed analogue input/output module with 2 inputs and
2 outputs, all with 12 bit resolution. The module is suitable for precise,
high speed applications.
Modules overview
PCD2.W500 : Module with 2 voltage inputs and 2 voltage outputs
0...+10 V (unipolar) or -10...+10 V (bipolar), jumper
selectable (standard module).
PCD2.W510 : Module with 2 current inputs 0...+20 mA or -20...+20 mA,
jumper selectable, and 2 voltage outputs 0...+10 V or
-10...+10 V, jumper selectable individually.
(special execution, available only on request)
26/757 E1 (Dx7--62-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 6-21
SAIA PCD Serie xx7
Analogue input/output modules
Technical data
Inputs
Number of input channels
Signal ranges
..W500 :
0...+10 V
-10...+10 V
¦ jumper selectable
¦ together
..W510 :
0...+20 mA
-20...+20 mA
¦ jumper selectable
¦ together
Potential separation
no
Measuring principle
differential
A/D conversion time
< 30 µs
Resolution
(digital representation)
12 bits
(0...4095)
Input resistance
0...+10 V :
1 MΩ
0...+20 mA : 100 Ω
Accuracy (referring
(to measured value)
Page 6-22
2
unipolar
bipolar
± 2 LSB
± 10 LSB
Repeating accuracy
(under same conditions)
± 2 LSB
Common mode voltage range
CMR
Common mode rejection
CMRR ≥ 75 dB
Overvoltage protection
..W500 :
± 40 VDC (permanent)
Overcurrent protection
..W510 :
45 mA
Time constant of input filter
3 ms
 SAIA-Burgess Electronics Ltd.
± 10 V
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Outputs
Number of output channels
2, short-circuit protected
Signal ranges
0...+10 V
-10...+10 V
Potential separation
no
D/A conversion time
< 20 µs
Resolution
(digital representation)
12 bits
(0...4095)
Load impedance
≥ 3 kΩ
Accuracy (referring to
output value)
0.3 %, ± 20 mV
¦ jumper selectable
¦ individually
Technical data common to the whole module
Protection against interference
voltages according to IEC 801-4
± 1 kV with cables not shielded
± 2 kV with cables shielded
Temperature error
0.3 % (across temperature range
0...+55 °C)
Current consumption :
internal from 5V bus
Important :
26/757 E1 (Dx7--62-E.DOC)
max. 200 mA
Since the current consumption of this module is considerable, when using a number of them in the same
PCD1 or PCD2 the total load for all modules must be
taken into consideration. The 5V supply accepts a max.
load of 750 mA for the PCD1, resp. 1600 mA for the
PCD2.
 SAIA-Burgess Electronics Ltd.
Page 6-23
SAIA PCD Serie xx7
Analogue input/output modules
Presentation
Bus connector
DC-DC Converter
Base module
Jumper : inputs unipolar ( U )
Plug-on module
Jumper : inputs bipolar ( B )
9
8
7
6
5
4
3
2
1
0
Screw terminals
-A1 +A1 -A0 +A0 -E1 +E1 -E0 +E0
PCD2.W500 module fully equipped
(with additional module plugged-on)
Apart from the bus connector, DC-DC converter and terminals, the base
module carries the two input channels with the 2-pole jumper for unipolar
or bipolar operation and a number of preset potentiometers, which cannot
be adjusted by the user.
The plug-on module contains the two analogue outputs with the two
3-pole jumpers for the individual unipolar or bipolar operation of each
output.
Note:
The base module alone is working.
Caution :
Page 6-24
This module contains components which
are sensitive to electrostatic discharges!.
 SAIA-Burgess Electronics Ltd.
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Analogue input/output modules
Jumpers
Output
B
U
1
B
U
0
9
8
7
6
5
4
3
2
1
0
-A1 +A1 -A0 +A0 -E1 +E1 -E0 +E0
Plug-on module
with 2 analogue outputs
Base module
with 2 analogue inputs
Base module and plug-on module are separate.
The two jumpers for selection of signal range (unipolar U / bipolar B)
can only be reversed after the plug-on module has been removed..
26/757 E1 (Dx7--62-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 6-25
SAIA PCD Serie xx7
Analogue input/output modules
Block circuit diagram
Ref.
2.5 V
+/- 10 V
Prot.
EMC
Eingang 0
V Adj.
Diff.
/4
/8
Mux.
Bus
A
N
Eingang 1
Prot.
EMC
Ausgang 0
Prot.
EMC
x2
x4
Diff.
x2
Ausgang 1
Prot.
EMC
x2
x4
Diff.
x2
Diff.
Bus
A
N
Bus
A
N
+/- 10 V
Ref.
2.5 V
Module connection
9
8
7
6
5
4
3
2
1
0
*)
*)
-A1 +A1 -A0 +A0 -E1 +E1 -E0 +E0
Output 1
User
ground
(PGND)
*) Note :
Page 6-26
Output 0
Input 1
Input 0
not used
The negative terminals « - » of outputs are connected
internally, each via a 100 Ω resistor, to the user ground.
 SAIA-Burgess Electronics Ltd.
(Dx7-62-E.DOC)
26/757 E1
SAIA PCD Serie xx7
Fast counter and positioning modules
7. Fast counter and positioning modules
PCD2.H100
Fast counting module for pulses up to 20 kHz. This simple module, comprising two inputs marked "IN-A" and
"IN-B" plus one direct countrol output marked "CCO",
allows counting of the number of revolutions or the calculation of distances (pulses) and the measurement by
counting of pulses within a logical AND window (second input).
PCD2.H110
Measuring and fast counting module for specific applications, such as frequency measurement, period measurement, various counting measurements, generator, etc..
The module is equipped with a FPGA (Field Programmable Gate Array) and can be programmed for special applications via plug-in PROM memory.
PCD2.H150
Motion control module using absolute encoders with SSI
interface (SSI = synchronous serial interface). In addition
to the RS 422 port, it also has 4 digital, short-circuit proof
outputs for general-purpose use.
PCD2.H210
Stepper motor module for triggering the power stage of a
stepper motor drive. This module enables the fully
autonomous control and monitoring of stepper motor
motion cycles (including acceleration and braking
ramps). The module is based on the PCD2.H110 with
FPGA and has 4 digital inputs and 4 digital outputs
PCD2.H31x
The PCD2.H31x positioning module is used to position
an independent axis fitted with a variable rotation speed
drive (servo-drive). This servo-motor is an adjustable DC
motor, capable of determining the number of rotations
and the position via a power stage and an incremental
rotation speed detector.
The implementation of the counting and position modules is in preparation. For details please ask your representatives.
26/757 E1 (Dx7-70-E.DOC)
 SAIA-Burgess Electronics Ltd.
Page 7-1
Fast counter and positioning modules
SAIA PCD Serie xx7
Notes:
Page 7-2
 SAIA-Burgess Electronics Ltd.
(Dx7-70-E.DOC)
26/757 E1