Gossen MetraWatt R2600, R2601 Interface Description

Interface description

R2601

DIN Draft 19244 Interface

3-348-815-15

7/6.10

INHALT Seite INHALT

1 General ..................................................................................... 4

1.1 Interface hardware ..................................................................... 4

1.2 Communications protocol ........................................................... 4

1.3 How to connect the interface ...................................................... 5

1.4 Principal function ....................................................................... 6

1.5 Time action................................................................................ 7

5

Seite

Storage operations .................................................................. 38

5.1 Request a record..................................................................... 38

5.2 Send a record ......................................................................... 39 2 Telegram structure..................................................................... 8

2.1 Short set.................................................................................... 8

2.2 Control set................................................................................. 9

2.3 Long set .................................................................................. 10

2.4 Function and value range of the format characters ..................... 11

2.5 Criteria for the validity of a request telegram .............................. 14

4.2 Control parameters.................................................................. 28

4.3 Control instructions.................................................................. 29

4.4 Equipment specifications ......................................................... 32

4.5 Heating current monitor ........................................................... 37

3 Telegram contents R2601 ........................................................ 15

3.1 Equipment reset....................................................................... 15

3.2 Interrogation: Equipment OK? ................................................... 15

3.3 Request for cycle data .............................................................. 16

3.4 Request for event data ............................................................. 17

3.5 Request data from R2601 ........................................................ 20

3.6 Send data to R2601 ................................................................. 22

4 Parameter indices of the equipment parameters ........................ 24

4.1 Temperature parameters .......................................................... 24

GMC-I Messtechnik GmbH 3

GMC-I Messtechnik GmbH

1 General

4

1.1 Interface hardware

To communicate with a host computer, an SPS, etc., the controller R2601 must be equipped with marking F1. In this case, the controllers are equipped with a serial interface having the following data:



Level types RS-232 and RS-485 (two-wire) in the unit selectable



Baud rate 9600 bd



Character format 8 data bits, 1 parity bit, 1 stop bit



Parity Even



Maximum number of equipment on the bus: 32



With RS-485 bus operation, each connected R2601 must have a different interface address ( Addr = 0 ... 250)

(see operating instructions 3-348-778-15).

RS-232

RS-485

1.2 Communications protocol

The transmission protocol used complies with DIN draft 19244. The R2601 uses only a partial amount of the defined functions which are described below.

1.3 How to connect the interface

1.3.1

RS-232 connection

When using the a RS-232 interface, only one R2601 can be connected to a master (e.g. PC), for example, for pre-loading the unit with user-specific data.

Sub-D socket

Number of pins:

25

DCD

RxD

TxD

DTR

Gnd

DSR

RTS

CTS

8

3

2

20

7

6

4

5

9

5

6

7

3

4

1

2

8

20

21

19

R2601

TxD

RxD

Gnd

Depending upon the driver software, the jumpers on the master side can be omitted and/or can be different.



1.3.2

RS-485 connection

When using a RS-485 interface, as many as 32 equipment (R2601 and others) can be connected to the bus.

Thereby, all terminals A, B and/or C are interconnected in parallel. The wiring must be made from equipment to equipment and must not be a star connection. With longer bus lines (longer than about 5 m) the bus should be terminated at both ends with the characteristic impedance

(e.g. 200



between A and B).

Master

A

B

C

R2601

21

20

19

R2601

21

20

19

When using the 1799-V5040 interface converter on the master, the following pins are connected on the Sub-D plug:

A = 3 B = 8 C = 5

1.4 Principal function

Involved is a master/slave protocol with a fixedly assigned master (e.g. SPS) and as many as 255 slaves (equipment e.g. R2601).

Communication is in half-duplex mode.

An equipment connected to the master becomes active (responds) only, when

– it receives a valid telegram addressed to itself and

– the minimum specified response delay time (t av

) has elapsed so that the host computer has time to get ready to receive data.

Following, the master may only become active again, when

– it receives a reply telegram from the addressed equipment and the specified wait time after a reply telegram (t aw) has elapsed, or

– the maximum specified response delay time (t av ) has elapsed.

Within a telegram, pauses of limited duration (t zv

= character delay time) may occur between 2 character transmissions.

1.5 Time action

Ready to send/receive after turn-on

Character delay time (R2601 transmitter)

Character delay time (master)

Response delay time (R2601 transmitter)

Wait time after R2601 response (master) t ber approx. 5 s t zvs

< 3 ms t zvm <

10 ms < t aw

> t

500 ms av

< 100 ms

10 ms

Master sends t ber approx. 5 s t av

10 ...

100 ms

Equipment responds t zvs

< 3 ms t aw

> 10 ms

Master sends t zvm

< 500 ms

Time



2 Telegram structure

All telegrams consist of one of 3 sets in both request and reply direction, they differ in their principal structure.

Their use is fixed for each interface function of the R2601.

Structure and use of the set types are described as follows.

2.1 Short set

Short sets are used on the request side (from the master)

 for transmission of short instructions to the equipment (e.g. Reset)

 for short requests of important data from the equipment (e.g. event data)

Short sets are used on the reply side (from the R2601)

 for acknowledgement of requests that require no reply data.

Principal construction short set

Character No.

Contents

1

2

10h

0 ... FAh, FFh

3

4

5 16h

Meaning

Start character

Equipment address

Function field

Checksum

End character

(FF)

(PS)

Remarks

Especially for short set

Addr and/or 255 (see 2.4.1) see 2.4.2

= Equipment address + FFh

Common to all set types

8

2.2 Control set

The R2601 uses control sets on the request side only. They serve to request all equipment data that cannot be requested via a short set because a detailed specification is required for them.

Principal construction control set

Character No. Contents Meaning

1

2

3

68h

3 and/or 6

3 and/or 6

Start character

Length

Length (repeat)

7

8

9

10

4

5

6

8 and/or 11

1

1

0

68h Start character (repeat)

0 ... FAh, FFh Equipment address

Function field

Parameter index

From channel

To channel

Receipt number

Checksum

9 and/or 12 16h End character

(FF)

(PI)

(PS)

Remarks

Number of characters from equipment address to checksum exclusive

Addr and/or 255 (see 2.4.1) see 2.4.2

see 2.4.3

For reasons of compatibility with multi-channel controllers these characters must be available, omitted for parameter index 30h ... 3Fh.

1)

1) For the set types, the checksum is formed by bytewise summation without overflow summation over all characters from the equipment address to checksum exclusive.



2.3 Long set

The R2601 uses long sets to transmit instructions and parameters to the equipment and to receive data from the equipment.

Principal construction long set

Character No. Contents

3

4

1

2

5

6

7

68h

68h

Meaning

Start character

Length

Length (repeat)

Start character (repeat)

0 ... FAh, FFh Equipment address

Function field

Parameter index

8

9

1

1

0

From channel

10

. . .

Length + 5

Length + 6 16h

To channel

Receipt number n character data block

Checksum

End character

(FF)

(PI) 1)

(PS)

1)

1)

1)

Remark

Number of characters from equipment address to checksum exclusive

Addr see 2.4.4.

2) and/or 255 (see 2.4.1) see 2.4.2.

see 2.4.3.

Omitted for parameter index 30h ... 3Fh

1) Omitted for reply cycle data and event data.

2) For the set types, the checksum is formed by bytewise summation without overflow summation over all characters from the equipment address to checksum exclusive.

10

2.4 Function and value range of the format characters

2.4.1

Equipment address



0 ... 250 Range for individual equipment addresses = interface address Addr



255 All equipment connected to a bus can simultaneously be addressed under this address. Data and instructions entered with this address are accepted by all equipment, but there is no acknowledgement made to the master.

2.4.2

Function field (FF)

The function field contains

 with the short set the proper user information, predefined by bits and different in request and response direction

 with the control and long set the direction and control information for the transmitted data block

2.4.2.1 Function coding of the function field in request direction

Request check

Reset equipment

Interrogation: Equipment OK?

Request cycle data from equipment

Request event data from equipment

Send data to R2601

Request data from R2601

Code Set

09h

29h Short set

89h

A9h

69h

89h

Long set

Remark

The R2601 evaluates the given codes only; an error acknowledgement is issued for invalid ones



2.4.2.2 Function coding of the function field (FF) in response direction

Bit No.

Function

0 ... 2 Reserved

3 Request disable

4 Instruction acknowledgement

5 Transmission error

6 Not used

7 Service request

0

1

0

1

0

0

1

Value Meaning

0, 0, 0 (fixed)

0

1

Instruction executed, equipment ready

Equipment not ready for this instruction, eventually repeat instruction

Instruction executed, equipment ready

Instruction could not be executed, equipment ready

Request telegram correct

Request telegram incorrect

None of the errors contained in error status words 1 and 2 occurred

One or more errors occurred, request error status for exact identification!

12

2.4.3

Parameter index (PI)

The type of the data to be transmitted is defined via the parameter index. The "PI" character is interpreted as follows:

Bit 7-4 Bit 3-0

0 ... Fh

Selection number for main parameter group

0 ... Fh

Selection number for a special parameter in the main group

Functionally used data and/or setting parameters of an equipment are combined in the main parameter groups. Only those parameter indices documented in section 4 can be addressed in the R2601, an error message is issued for all others.

2.4.4

Length and format of the data block

Length and format of the data block are variable and a function of PI and FF.

The transmitted values can have byte or word format:

8 Bit



Bit 2's complement presentation

Number without sign

Number with sign

16 Bit LS byte first



15 Bit LS byte first, 2's complement presentation

8/16 Bit LS byte first

Number without sign

Number with sign

Bit field



2.5 Criteria for the validity of a request telegram

The R2601 checks the characters of the telegrams received in accordance with the following tables:

For short set: For control and long set:

Character No.

Criterion

1 10h

Character No.

1

Criterion

68h

2

3

4

5

Interface address Addr or 255 (see 2.4.2)

FF = valid function coding

PS =

16h

Addr or 255 + FF

2

3

4

Note length for PS and end character

Character 3 = character 2

68h

5

6

7

Interface address Addr or 255

FF = 69h oder 89h

PI = valid parameter index (see section 4)

. . .

(data block)

Length + 5 PS = 1)

Length + 6 16h

1) Bytewise sum without overflow over all characters from equipment address ( Addr or 255) to checksum exclusive

14

If incorrect values are received for FF, PI and PS, the R2601 responds with a short set with set transmission error bit. If the user data is entered beyond its specific value ranges, the R2601 responds with a short set with set service request bit. The bit "impermissible value" is set in the error status word

2.

If there are other deviations or a parity error, the telegram is invalid, the R2601 does not respond.

3 Telegram contents R2601

3.1 Equipment reset

The addressed equipment performs a hardware reset same as in the case of a short interruption of the auxiliary voltage.

Example: Equipment address = 2

Request from master (short set): 10h 02h 09h

FF

0Bh

PS

16h

R2601 response: None

3.2 Interrogation: Equipment OK?

The addressed equipment shows the function field only:


Request from master (short set): 10h 03h

R2601 response (short set):

See 2.4.2.2 for contents of the function field.

10h 03h

29h

FF

2Ch

PS

16h

„FF“ „FF“+3 16h



3.3 Request for cycle data

You will get the most important measuring and output values of the controller in one data package.

Cyclic requests of these values are thus made possible in compact form (short set request.


Request from master (short set): 10h 02h 16h

R2601 response (long set, see 2.3): 68h 09h

89h

FF

09h

8Bh

PS

68h 02h „FF“ Data block „PS“

7 characters

See 2.4.2.2 for contents of the function field (FF)

The 7 characters of the cycle data block have the following format:

Character No.

7, 8

9, 10

Contents, e.g. Format

2Ch, 01h

36h, 01h



15 bits

Unit of measure Remark

1



/ 0.1



/ 1 1st measured value (e.g. 300



)



15 bits 1



/ 0.1



/ 1 2nd measured value (e.g. 310



)

0, 0

11

12, 13

CEh

28h, 00h



7 bits



15 bits

1 %

0.1 A

Actual ON time (e.g. –50 %)

Meas. val. of the heating curr. (e.g. 4,0 A)

Condition

B3, B4, B5

B1, B2

A1, A2, A3

1% Position readback (e.g. 40 %) A4

16h

16

3.4 Request for event data

The event date, combined in 2 words, contain all error messages and alarms of the equipment.

They can be called up via short set to identify a special error.

This request can be made asynchronous, for example, if the service request bit (collected errors) was set before in any random response telegram in the function field (FF).


Request from master (short set):

R2601 response (long set, see 2.3):

10h

68h

05h

06h

A9h

06h

AEh

68h

16h

05h 16h „FF“ Data block „PS“

4 characters

See 2.4.2.2 for contents of the function field (FF)

The 4 characters of the event data block are bit fields which are combined to form the error status words 1 and 2.

These 4 characters can also be read by data request with parameter index 21h.

See the operating instructions for more explanations and information on error elimination.



Character Bit No.

0

1

2

1.

3

4

5

6

7

8

9

10

11

2.

12

13

14

15

Meaning

Sensor breakage measuring circuit 2

Wrong polarity measuring circuit 2

Analog error

Sensor breakage measuring circuit 1

Wrong polarity measuring circuit 1

Low limit 1 fallen below

Low limit 2 fallen below

High limit 1 exceeded

High limit 2 exceeded

Impermissible parameter, see 2.5

Error in heating circuit

Error at start of self-optimizing

Error during self-optimizing + stop

1)

1)

1)

1)

Display on equipment Remark

18

Associated data display flashes

Status error word 1

(control loop)

2

3

4

0

1

Sensor error position readback

Sensor error heating current

3.

5

Heating current not "off" with positioning signal switched off

Heating current < 80 % of the set point of the heating current with active positioning signal

4.

6

7

8

9

10

11

12

13

14

15

EEPROM error

Function error of rotary button

Error of measured value calibration

Invalid combination of markings

1) These error bits are deleted after reading. With LE and/or tE , the control function is reactivated.

2) EEPROM error reset by setting the standard parameters with PI = 32h.

2)

Current display flashes

Error status word 2

(heating current monitor, equipment)



3.5 Request data from R2601

This communication makes it possible to request all values, parameters, configurations, states and equipment markings.

Thereby, the data is individually addressed per parameter index. See section 4 for the complete list of all parameter indices.

3.5.1

Request an equipment specification

The parameter index lies between 30h and 3Fh. Thus the characters "from/to channel" and "receipt No." in the control and long set are omitted.

Example: Request for equipment marking having the address = 33 = 21h (see 4.4)

Request from master (control set, see 2.2):

68h 03h 03h 68h 21h 89

FF

30h

PI

DAh

PS

16h

20

Equipment response (long set, see 2.3):

68h 04h 04h 68h 21h „FF“ 16h 30h

PI

26h

Data block

„PS“

See 2.4.2.2 for the contents of the function field (FF).

The "data block" consists of a character 26h as marking for the R2601 (see 4.4).

3.5.2

Request for a temperature parameter, for example

The parameter index is not 3xh, thus the characters "from/to channel" and "receipt No." = 1, 1, 0 are contained in the control and long set.

Example: Request for the maximum selectable set point ( SP H ) of the R2601 with address = 33 = 21h (see 4.1)


68h 06h 06h 68h 21h 89

FF

07h

PI

01h 01h 00h B3h

PS

16h

Equipment response (long set, see 2.3):

68h 08h 08h 68h 21h „FF“ 07h

PI

01h 01h 00h 52h 03h

2 characters

Data block

„PS“ 16h

See 2.4.2.2 for the contents of the function field (FF)

According to 4.1 and 2.4.4, the two characters of the data block (52h, 03h) result in:

SP H = 0352h = 850

If it is an equipment with marking B1 and configuration "sensor type" = 0 ... 6 and "sensor unit" = even number, the unit is



C

(the configuration could be requested with PI = 32h and 33h).



3.6 Send data to R2601

This communication makes it possible to set all parameters, configurations and operating states which can be changed via operation. Thereby, the data is individually addressed per parameter index. See section 4 for the complete list of all parameter indices. There is no protection against overwriting.

The settings of the DIP switches for disabling of the configuration and/or parameter setting are of no importance. Also the start of optimizing cannot be disabled.

The R2601 checks the transmitted value for its setting range. Should it be beyond its permissible range, it is not stored, the bit "impermissible value" is set in error status word 1, and the "service request" bit is set in the acknowledgement short set.

Same as with manual operation of the equipment, it must be noted, that a complete configuration must be made before parameters are set: That is, the

"control instructions" and "equipment specifications" must first be transmitted which influence the presentation of the "temperature parameters" (see

4.3 and 4.4).

3.6.1

Sending an equipment specification

The parameter index lies between 30h and 3Fh. Thus the characters "from/to channel" and "receipt No." are omitted in the long set.

Example: Setting the thermocouple type "K" on the equipment having the address = 0 (see 4.4).

Request from master (long set, see 2.3):

68h 05h 05h 68h 00h 69

FF

33h

PI

02h 00h

Data block

9Eh

PS

16h

Acknowledgement from equipment (short set): 10h 00h „FF“ „FF“

PS

16h


The first character of the data block is the configuration "sensor type". The second character (B marking) cannot be stored, but a character (any, e.g.

00h) must be sent.

3.6.2

Send a control parameter, for example

The parameter index (PI) is not 3xh, thus the characters "from/to channel" and "receipt No." = 1, 1, 0 are contained in the long set.

Example: Send the Heat proportional band Pb I = 2.3% to R2601 with the address = 1 (see 4.2).

Transmission from master (long set, see 2.3):

68h 08h 08h 68h 01h 69

FF

10h

PI

01h 01h 00h 17h 00h

Data block

93h

PS

16h

Acknowledgement from equipment (short set): 10h 01h „FF“ „FF“ + 1 16h

PS


According to 4.2 and 2.4.4, the two characters of the data block (17h, 00h) are calculated to be: Pb I in 0.1% = 23 = 0017h



4 Parameter indices of the equipment parameters

For a request and/or transmission of data from and/or to the R2601, not only the parameter index for the individual data but also the format and thus the length of the data block in the long set are of interest. From the column "Format" of the parameter tables and section 2.4.4, the number, order and contents of the characters of the data block can be found.

See the operating instructions for detailed information on the function of the data.

4.1 Temperature parameters

The temperature parameters are combined in the main parameter group 0.

In the R2601, they are stored in standardized form to the measuring range so that other values result when the sensor type or the unit of measure is reconfigured, or when a change is made from fixed value or slave controller to differential controller.

4.1.1

Table of temperature parameters

PI Parameter

00h Set point

01h High limit for relay A1

02h Low limit for relay A1

03h Second set point

Display Format Unit

X1 = range span, X2 = upper range limit, MBU = X2 - X1, see 4.1.3

Setting range



15 bits (4.1.2) SP L ... SP H



15 bits (4.1.2) 0 = oFF , 1... MBU

X1 = oFF , X1 + 1 ... X2

Remarks

At rel. limit

At abs. limit and fixed value controller

–MBU/2 = oFF ,

–MBU/2 + 1 ... +MBU/2



15 bits (4.1.2) Same as PI = 01h



15 bits (4.1.2) SP L ... SP H

At abs. limit and differential controller

Same as PI = 01h

04h

05h

06h

07h

High limit for relay A2

Low limit for relay A2

Low set point

High set point





15 bits (4.1.2) Same as PI = 01h



15 bits (4.1.2) X1 ... SP H



15 bits

15 bits

(4.1.2)

(4.1.2)

Same as PI = 01h

–MBU/2 ...

SP L ... X2

SP H

08h

09h Upper limit standard signal

0Ch Calibration actual value

0Dh Location of decimal point

0Eh

0Fh

Lower range limit standard signal

Ramp for rising set points

Ramp for falling set points

SP L ... MBU/2



15 bits



15 bits

–1500 ... r n L r n H

....9999



15 bits (4.1.2) –MBU/4 ... +MBU/4

–MBU/4 = Auto ,

–MBU/4 + 1 ... MBU/4

8 bits 1)



15 bits



15 bits

2)

2)

0, 1 = 9.999

, 2 = 99.99

,

3 = 999.9

, 4 = none

0 = oFF , 1 ... MBU

0 = oFF , 1 ... MBU

1) The decimal point is for the display on the R2601 only, not for the parameter values.

2) Unit per minute, see 4.1.2 for units

Same as PI = 01h

Same as PI = 01h

For fixed value controller, slave controller

For differential controller

For fixed value controller, slave controller

For differential controller

For B2, B4, B5

For B2, B4, B5

For B1, B3, B4 and TC

For B1, B3, B4 and Pt100

For B2, B5



4.1.2

Unit of the temperature parameters

The unit of the temperature parameters depends upon

– the range marking B1 ... B5 of the equipment (see PI = 33h),

– the configured sensor type (see PI = 33h) and

– the configured unit of the sensor (see PI = 32h).

26

Sensor type

Marking

0 ... 7 8

B1, B3, B4 1



C / 1



F 0.1



C / 0.1



F

B2, B5 1, 0.1, 0.01, 0.001

With standard signal (B2, B5) and Pt100 with 0.1

 display, the decimal point only serves for the display on the R2601, not for the parameter values.

That is, a value of 234.5 in the display, for example, is to be transmitted as 2345 = 0929. The two characters of the data block then are 29h, 09h.

4.1.3

Table of measuring ranges

Sensor type

Code Kind

0

1

2

3

4

TC

5

6

7

Pt100

8

0 Standard

1 signal

Type

J

L

K

B

–18

0

S –18

R

N

1



display

0.1



display

0 ... 20 mA / 0 ... 10 V

4 ... 20 mA / 2 ... 10 V

Lower range limit X1 in °C in °F

–18

–18

0

0

–18

–18

–100

–100.0

r n L

0

32

0

0

0

–148

–148.0

Upper range limit X2 in °C in °F

850

850

1562

1562

1200

1820

1770

2192

3308

3218

1770

1300

500

500.0

3218

2372

932

932.0

r n H

Range span MBU in °C in °F

868

868

1562

1562

1218

1820

1788

2192

3276

3218

1788

1318

600

600.0

3218

2372

1080

1080.0

r n H – r n L



4.2 Control parameters

The control parameters are listed in the main parameter index group 1.

4.2.1

Table of the control parameters

PI Parameter

10h Proportional band Heat

11h Proportional band Cool

12h Deadband

14h Delay time of the controlled system

15h Output cycle time

16h Regulation ratio for positioner mode

Display

18h Motor running time

1Dh Maximum regulation ratio

1Eh Regulation ratio with sensor error

1Fh Switching hysteresis for alarms and limit monitor

Format Unit Setting range

16 bits 0.1%

16 bits 0.1%

1 ... 9999

1 ... 9999

16 bits (4.1.2) 0 ... MBU

16 bits 1 s

16 bits 0.5 s



7 bits 1%

0 ... 9999

1 ... 1200

–100 ... 100



16 bits

7 bits

1 s

1%

0 ... 100

5 ... 5000

–100 ... 100

0 ... 100



7 bits 1% –100 ... 100

0 ... 100

8 bits (4.1.2) 0 ... 1.5%MBU

Remarks

For A2, A3, A4

For A1

For A2, A3, A4

For A1

For A2, A3, A4

For A1

28

4.3 Control instructions

The control instructions in main group 2 of the parameter index define the control action of the equipment

4.3.1

Table of the control instructions

PI Parameter

20h Control status control channel


16 bits Bit field See 4.3.2

Remarks

21h Error status

Control loop / HÜ (htg. current monitor) / equipment

22h Configuration

2nd signal input

23h Automatic mode

Off and/or manual mode

28h Manual regulation ratio with manual mode

Contents

Controller type (= CnF1 ,

2nd digit), SP 2 active?

Start/Stop self-optimizing

Summary of all error messages 2x16 bits Bit field See 3.4

event data

8 bits



8 bits

7 bits 1%

Read only

See 4.3.3

Influences the display of the temperature parameters

CnF2 , 2nd digit

Fixed value, differential, slave controller input range with standard signal

AAh = Automatic, manual via binary input 2

55h = Off / manual

–100 ... 100

0 ... 100

For A2, A3, A4

For A1

Writing only permitted in manual mode



4.3.2

Control status controller channel (PI = 20h):

Bit No.

Value Meaning

2 - 0

000

001

010

011

100

101

110

Controller type =

Limit monitor

Positioner

Two-state controller Heat / continuous controller falling characteristic

Two-state controller Cool / continuous controller rising characteristic

Three-state controller / split range controller

Three-state controller Water cooling

Step controller

3 - 6

111 Impermissible

0

7

8

9

10

0 / 1 SP active / SP 2 active

0

0 / 1 Self-optimizing Stop / Start

11

12 - 15

0

0 / 1 Binary input 2 open / closed 2)

0

1) Otherwise bit 12 "Error at start of self-optimizing" will be set in error status word 1 (see 3.4)

2) Standard: switch-over automatic / manual mode

Remarks

Not for marking A1

Read only

Not for controller types 000, 001 1)

Read only

30

4

5

2

3

Code

0

1

6

7

4.3.3

Configuration of the 2nd signal input (PI = 22)

Function signal input 2

B3

Differential controller

B4

Fixed value controller (internal set point)

Fixed value controller

B5

Differential controller

–

–

–

–

–

–

Slave controller

Fixed value controller

Fixed value controller Differential controller

Slave controller

Standard signal 2

B4, B5

0 ... 20 mA

0 ... 10 V

4 ... 20 mA

2 ... 10 V



4.4 Equipment specifications

The equipment specifications in main group 3 of the parameter index among others include marking identification, software version and some configurations.

4.4.1

Table of equipment specifications

PI Parameter

30h Equipment marking

31h Marking identification

32h Configuration

Sensor unit, continuous output

33h Sensor type, B marking

35h Software version

36h Configuration of alarms 1 / 2


8 bits 26h

8 bits Bit field (4.4.2)

8 bits (4.4.3)

2x8 bits

8 bits

(4.4.4) e.g. 18h = version 1.8

8 bits Bit field (4.4.5)

39h Configuration of switching outputs I / II

3Ah Continuous signal Cont

3Fh OEM version number

8 bits Bit field Value I

00h

08h

10h

18h

Transistor

Relay

Transistor

Relay

8 bits

8 Bit

II

Transistor

Transistor

Relay

Relay

0 = actual set point

1 = Cool reg. ratio (instead of II)

0 = no OEM version

Remarks

Read only

Read only

CnF1 , 4th digit

CnF1 , 3rd digit

Read only

CnF1 , 1st digit

CnF2 , 1st digit

Read only

(DIP switch)

Only active, if PI = 32h set to



8

Read only

4.4.2

Marking identifications (PI = 31h)

Bit No.

Value Meaning

2 ... 0

001

100

101

111

A4

A1

A2

A3

5 ... 3

6

7

0

0

1

010

011

100

101

111

B2

B1

B5

B4

B3

Series version

OEM version of hardware and software

Remark

Different from PI = 33h



4.4.3

Configuration: Sensor unit, continuous output (PI = 32h)

Code Sensor unit 1) Continuous output

0



C

1

2



C

3

4



C

5

6



C

7

8



C

9

0Ah



C

0Bh

0Fh











F

F

F

F

F

Output range

0 ... 20 mA

0 ... 10 V

4 ... 20 mA

2 ... 10 V

0 ... 20 mA

0 ... 10 V

4 ... 20 mA

2 ... 10 V

0 ... 20 mA

0 ... 10 V

4 ... 20 mA

2 ... 10 V

Output quantity

Actual value

(switching controller)

Regulation ratio

(continuous controller)

Select output quantity with Cont (PI = 3Ah)



F

Activate default configuration + default parameters

1) When switching-over, the physical quantity of the temperature parameter is preserved

2) Configuration digits and all parameters except for the interface address Addr .

34

Code Function

0Dh

The current setting 2) is stored as a user defined default setting.

Note

Configuration in accordance with customer specifications

(K9) is stored at this location and is thus overwritten.

0Eh

0Fh

The user defined default setting 2) is uploaded.

If a setting has never been previously stored with d , the factory default setting or the configuration in accordance with customer specifications

(K9) is uploaded.

All entries are overwritten, including the results of selfoptimization and calibration.

The factory default setting 2) is uploaded.

4.4.4

Sensor type, B marking (PI = 33h)

1st character = sensor type:

Code

2

3

4

0

1

Type

J

L

K

B

S

5 R

6 N

7 1

 display

8 0,1

 display

0 0 ... 20 mA / 0 ... 10 V

1 4 ... 20 mA / 2 ... 10 V

Sensor type 1)

Kind

Thermocouple

Pt 100

Standard signal

1) A change influences the presentation of the temperature parameters

Condition

For signal input 1 at marking B1, B4

For both signal inputs at marking B3

2nd character = B marking:

Value Meaning Remarks

0

1

3

6

7

B5

B4

B3

B2

B1

Read only, different from

PI = 31h

For signal input 1 at marking B2, B5



4.4.5

Configuration of alarms 1 / 2 (PI = 36h)

Bit No.

3 ... 0

Alarms 1

Start-up suppression Contact Code 1)

0 Relative

1 Absolute

2 Relative

3 Absolute

4 Relative

5 Absolute

6 Relative

7 Absolute

8 Relative

9 Absolute

0Ah Relative

0Bh Absolute

0Ch Relative

0Dh Absolute

0Eh Relative

0Fh Absolute

Inactive

Active

Inactive

Active

Inactive

Active

Inactive

Active

NOC

NCC

NOC

NCC

6 ... 4 Alarms 2

Active

Heating circuit monitor

Inactive

36

0 Relative

1 Absolute

2 Relative

3 Absolute

4 Relative

5 Absolute

6 Relative

7 Absolute

Inactive

Active

Inactive

Active

NOC

NCC

7 0

1) A change between relative and absolute changes the numeric values of the high and low limits.

4.5 Heating current monitor

Main group 6 of the parameter index includes the parameters for heating current monitoring.

4.5.1

Table of the parameters for the heating current monitor

PI Parameter

60h Set point of the heating current

64h Upper range limit for heating current

Display Format Unit



15 bits 0.1 A



15 bits 0.1 A

Setting range

0 = Off, 1 ... A H

10 ... 999


Remarks

Current value at which 10 V

DC are applied to the input

37


5 Storage operations

To store all parameter and configuration data of an equipment, it is not required to address all data individually via parameter indices. It is possible instead to directly read and/or write all data stored in the non-volatile data memory (EEPROM) in one record.

This function serves to save the data, to quickly load or duplicate user-specific settings to the R2601. Length and format of the data block depends upon the EEPROM allocation which can change with the software version of the R2601. That is why no information is given about it. Loading of a record to the R2601 can, therefore, only be made for the same software version.

5.1 Request a record

Make the request as described in 3.5, the parameter index = D8h.



68h 06h 06h 68h 04h 89h

FF

D8h

PI

Response from R2601 (long set):

68h L + 6 L + 6 68h 04h „FF“ D8h

PI

01h 01h 00h

01h 01h 18h

Software version

67h

PS

16h

Data block

L character

„PS“ 16h

5.2 Send a record

The long set for sending to the R2601 can practically only be generated from the received long set at the request of a record. The function field (6th character) in 69h (write data) must be changed for that purpose. When copying to another R2601, the equipment address must be adapted (5th character). Following, the checksum (last but one character) must be corrected.

Send from master (control set, e.g. equipment address = 4):

68h L + 6 L + 6 68h 04h 69h D8h

FF PI

01h 01h 18h Data block

L character

„PS“ 16h

10h

Reply from R2601 (short set):

04h „FF“ „FF“ + 4 16h

The record will only be accepted by the equipment, when the software version (12th character) and the length of the data block agree with the equipment. The content of the data block is not checked as it is correct in itself when it comes from a R2601.

It must be noted to send a record only to an equipment having the same A and B markings as the equipment from which the record comes. If this is not observed (e.g. by impermissible configuration data) an unreasonable action of the R2601 may result which can be dangerous to the system.


Edited in Germany • Subject to change without notice • A pdf version is available on the internet


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Phone +49 911 8602-111

Fax +49 911 8602-777

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