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SERIES SIX
PROGRAMMABLE
GEK-83537C
CONTROLLERS
240 I/O References
496 I/O References
REMOTE I/O MODULES
GENERAL DESCRIPTION
The Remote I/O Modules, which include Driver and Receiver circuit boards, provide a serial, long-distance, communications interface between local and remote I/O
locations. The Remote I/O Modules features and benefits
are summarized in Table 1.
The Remote I/O modules support two types of serial communications interfaces: 2-twisted pair and RS-232-C
(modem). The twisted pair interface consists of two unidirectional data lines (Transmit Data and Receive Data)
through which data and control signals can be transferred
10,000 feet (3 km) at rates up to 57.6K baud.
The RS-232-C (modem) interface allows a Remote I/O
Station to be located at a distance (from a Central Processing Unit (CPU), or Local I/O Station) limited only by the
specifications of the modem employed and I/O response
time requirements. Signal definitions are as described by
the EIA RS-232C standard; six baud rates are selectable
by the user, ranging from 110 to 57.6K baud.
leaving blocks of 240 or 496 I/O references, respectively,
for general purpose inputs and outputs.
Another user option allows the Remote output points to
hold their last state in the event of a CPU or communications link failure, and/or to allow the CPU to continue
running during a fault or a parity error in the Remote
station, or a link failure between the Driver and Receiver.
These module also contain diagnostic circuitry and LightEmitting Diodes (LED’S) that indicate a failure has occurred in the Remote I/O Driver, the serial communicaions link, or the Remote station (including the Remote
I/O Receiver). These LED’s operate only when the
module is installed in a properly powered I/O rack.
NOTE
Remote I/O Driver and Receiver modules,
having model numbers IC600BF801A and
IC600BF901A are not compatible with their
BF801B a n d 9 0 1 B .
successors,
Consequently, a model A module cannot be
utilized in the same remote I/O configuration with a model B module.
The modules can support blocks of 128 or 256 I/O
references; the block sizes are jumper-selectable on the
Driver module. However, the user must reserve 8 of
these I/O references for Series Six status information,
TABLE 1.
-
BENEFITS
FEATURES
-
-
FEATURES AND BENEFITS
Long-distance communications between CPU and I/O.
Reduces I/O wiring costs.
Dual-mode communication capability:
?? twisted-pair
?? modem
Useful in a variety of applications:
?? high-speed over direct wires
?? iong distances over other media
120 I-l 20 0 or 248 I-248 0 References per module.
Expandability.
Error detection lights.
Simplifies
Jumper-selectable modes of operation.
Flexibility in applications.
troubleshooting.
APPLICATIONS
* Remote Sewage Aeration Lagoons
* Tank Farm Monitor
* Large Conveyor Systems
* Pumping Stations
* Electric Sub-station Monitors
* Mining
* Operator Consoles
* Moving Cranes
Sr Distributed Machine Lines
1
GEK-83537
Remote I/O Modules
LED INDICATORS
DESCRIPTION
LED
LOCAL
OK
O N OFF -
Remote l/O Receiver module operating normally.
Communications failure due to timeout or successive transmission errors.
LINK
OK
O N -
Communications link between this module and Remote I/O Driver established and
valid.
Communications error between this module and Remote I/O Driver.
OFF REMOTE
OK
ON OFF -
Remote system is operating normally.
Fault in Remote I/O system (illegal
failure).
REMOTE
PARITY
O N OFF -
Remote system operating normally with no parity errors.
Parity error detected in Remote I/O system.
FIGURE 3.
address
block,
REMOTE I/O RECEIVER (Part 3 of 3)
loose
connection,
power
supply
Remote I/O Modules
GEK-83537
INSTALLATION
Before installing the Remote I/O modules, review Table 2
to determine if the factory-set configurations are suitable
for the Remote I/O application. Optional configurations
are also indicated in Table 2. Step-by-step considerations
are described in this section.
TABLE 2.
STEP
Modems being used must be compatible with Remote
I/O, see specifications (pages 2 and 3).
THINGS TO CONSIDER BEFORE INSTALLING MODULES
CONSIDERATION
FACTORY
CONFIGURATION
OPTIONAL
CONFIGURATION
1
Block Size
120 Inputs/120 Outputs
248 Inputs/248 Outputs
2
Block Address Switches
8 Blocks of 240 I/O References to
choose from
4 Blocks of 496 I/O References to
choose from
3
Number of I/O Racks in
Remote I/O Station
2 or more I/O Racks in Remote
Station
1 I/O Rack (Containing Receiver)
in Remote Station
4
Communications
Interface
Twisted-Pair up to 10,000 ft (3 km)
RS-232 (Modem) a s link
(Requires High-Capacity I/O Rack)
5
Communications
CPU Status
Failure:
STOP CPU
Allow CPU to Run
6
Communications Failure:
Remote I/O Status
Turn all outputs OFF
Hold all outputs at last state
7
Remote I/O Parity Error
STOP CPU
Allow CPU to Run
GEK-83537
Remote I/O Modules
The Driver DIP-switches, 1-4, are used to select which of
16 possible addresses in the block is to be reserved for the
remote I/O status information. (If 1-4 were depressed to
the left, the last address of I/O references would be selected e.g. 0121 - 0128).
Step 1 - Block Size
To obtain the Remote I/O modules for a block size of 496
inputs/outputs, set jumper 2 on the Driver module to position 2-4 (Refer to Figure 2, User Item 2)
If the block size is to equal 496, the user can select one of
four blocks of I/O references; (the DIP-switch rockers
l-5, in this case, select one of 32 possible addresses for
status) the selection is made at the I/O Rack where the
Driver is to be installed. Refer to Figure 5 for possible
selections.
Step 2 - Address Switches
If the block size equals 240, the user can select one of
eight blocks of I/O References; the selection is made at
the I/O Rack where the Driver is to be installed. Adjacent
to the module slot on the rack backplane where the
Driver is to be installed is a DIP-switch package whose
possible block address settings are described in Figure 4.
I/O References In
Remote Location
User I/O
Quantity
0001-0128
0129-0256
0257-0384
0385-0512
0513-0640
0641-0768
0769-0896
0897-1000
(7 =Bottom)
7
120/120
120/120
120/120
120/120
120/120
120/120
120/120
96/96
Note:
FIGURE 4.
Rack Address Switches
5
6
L = Depressed to Left (Open)
R = Depressed to Right (Closed)
I/O RACK DIP-SWITCH SETTINGS FOR 240 I/O BLOCKS
I/O
References-
User I/O
0001-0256
0257-0512
0513-0768
0769-1000
248/248
248/248
248/248
224/224
Rack Address Switches
7
6
R
R
L
L
R
L
R
L
Note: L = Depressed to Left (Open)
R = Depressed to Right (Closed)
FIGURE 5.
I/O RACK DIP-SWITCH SETTINGS FOR 496 I/O BLOCKS
NOTE
All I/O modules in the remote end must utilize addresses within the range established by the
Driver. Inputs not used at the remote end can be used elsewhere in the system (local or
remote locations). Outputs can be duplicated if needed.
GEK-83537
Remote I/O Modules
Step 5 - Communications Failure - CPU Status1
If an error is detected between the Driver and Receiver,
what should the CPU do?
At Driver
Jumper 9
(Factory Setting)
Halt CPU
9- 10
(Optional Setting)
CPU RUN
8-9
Step 6 - Communications Failure - Remote I/O Status1
If an error is detected between the Driver and Receiver,
what should the Remote I/O do?
At Receiver
Jumper 5
(Factory Setting)
Turn All Outputs OFF
4-5
(Optional Setting)
Hold LAST STATE
5-6
Step 7 - Remote I/O Error
If an error is detected in the parity checking at the
Remote Station within its I/O modules and/or racks, what
should the CPU do?
At Driver
Jumper 6
1.
12
(Factory Setting)
Halt CPU
6-7
(Optional Setting)
CPU RUN
5-6
The Hold Last State and the Remote Parity Error Effect or Communications Failure Effect functions are available with Remote
Driver: Remote Receiver modules revision C (P/N IC6OOBF901C, IC600BF801C, or IC600YB901C, IC600YB801C, respectively). These functions do not operate properly with earlier revisions. If you require use of these functions On earlier modules,
please contact the GE Fanuc Field Service Group at 804-978-5624 for assistance.
GEK-83537
Remote I/O Modules
REMOTE I/O STATUS BYTE
as summarized below. The example references assume
the Driver is using references, 0121 - 0128 (DIP switches
l-4 set to left, 5-7 set to right).
The Remote Driver utilizes 8 input references and 8
output references as selected by the I/O rack address
switches (refer to step 2). The outputs are reserved for
future use; the inputs provide the user with information
Input Number
Example
Function
1
2
3
4
5
6
7
8
10121
10122
IO123
IO124
10125
IO126
10127
10128
Data Hand Shake
Reserved
Reserved
Remote Parity
Remote OK
Link OK
Local OK
Heartbeat
Input No.
Input 1 toggles to indicate occurance of data handshake between Driver and Receiver.
2-3
Reserved.
4.
If a parity error is detected in the communications between the Remote Receiver and other Remote racks, the
4th input is a zero (OFF). Otherwise, it is a one (ON).
5,
If any fault is found with the Remote I/O such as power supply failure or parity error, the 5th input is a zero
(OFF) ; otherwise, it is a one (ON).
6.
If any error is detected in the communications system between the Driver and the Receiver the, 6th input is a
zero (OFF), Errors include failure of LRC, parity error, broken cable, faulty modem, etc. Otherwise, it is a
one (ON).
7.
If any fault is found with the driver installed in the Local I/O, the 7th input is a zero (OFF); otherwise, it is a
one (ON).
8.
The 8th input cycles, OFF/ON/OFF/ON/OFF, one change each scan, indicating that the remote I/O system is
properly functioning. If any of the four inputs (4-7) are set to zero, this input stops cycling and will hold an
OFF or ON state, whichever was the last valid data.
ORDERING INFORMATION
Circuit Board & Faceplate
I/O Remote Receiver
I/O Remote Driver
Circuit Board
IC600YB801C
IC600YB901C
IC600BF80lC
IC600BF901C
Faceplate
IC600FP801A
IC600FP901A
CATALOG NUMBER REVISION SUFFIX
The equipment listed above having the catalog numbers shown and the same equipment having a higher alpha suffix is designed for listing by UL for use as auxiliary control devices. The equipment is a direct replacement for equipment having the
same catalog number but a lower alpha suffix.
The UL symbol on the nameplate means the product is listed by Underwriters Laboratories Inc. (UL Standard No.
508, Industrial Control Equipment, subsection Electronic, Power Conversion Equipment.)
For further information, contact your local GE Fanuc sales office.
GE FANUC AUTOMATION NORTH AMERICA, INC. CHARLOTTESVILLE, VIRGINIA
PRINTED
IN
U.S.A
16
APRIL, 1987
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