Omron CQM1-SRM21-V1 User manual

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CompoBus/S Master Module CQM1-SRM21-V1
Wire-saving CompoBus/S Remote
I/O for Compact CQM1 Controllers
1128 remote I/O points maximum; also
canbesetfor32or64I/Opoints
1Master connects to a maximum of 16 or
32 slaves
1Fast communications of 0.5 ms max. at
standard distance of 100 m (750 kbps)
1Extended distance communications to
500 m (93.75 kbps)
1Supports analog input and output slave
blocks
1Flat, 4-conductor cable or Belden #9409
twisted pair cable connects master to
terminal blocks
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Ordering Information
3COMPOBUS/S MASTER MODULE
Compatible Omron controller Maximum number of I/O points Part number
CQM1-Series PLCs 128 points (64 inputs/64 outputs) CQM1-SRM21-V1
3ACCESSORIES
Item Specification Part number
Communications cable Flat cable, 100 m length, 4 conductor (0.75 mm2each) SCA1-4F10
Branch connector Sold in packs of 10 SCN1-TH4
Extension connector Sold in packs of 10 SCN1-TH4E
Connector terminator Sold in packs of 10 SCN1-TH4T
Terminal block terminator Sold in packs of 10 SRS1-T

CQM1-SRM21-V1 CQM1-SRM21-V1
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Specifications
3COMMUNICATIONS SPECIFICATIONS
Communications method CompoBus/S protocol
Coding method Manchester coding method
Connection method Multi-drop method and T-branch method (See Note)
Communications baud rate 750,000 bps, 93,750 bps (selected by DIP switch)
Communications
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High-speed
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0.5 ms with 8 Slaves for inputs and 8 Slaves for outputs
cyc
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mode 0.8 ms with 16 Slaves for inputs and 16 Slaves for outputs
Long-distance
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4.0 ms with 8 Slaves for inputs and 8 Slaves for outputs
commun
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mode 6.0 ms with 16 Slaves for inputs and 16 Slaves for outputs
Communications cable 2-conductor Belden #9409 or VCTF cable (0.75 x 20)
Dedicated flat cable
Communications
distance High-speed
communications
mode
Belden #9409 or VCTF cable:
Main line length: 100 m(328.1 ft) max.
Branch line length: 3 m (9.84 ft) max.
Total branch line length: 50 m (164.0 ft) max.
Flat cable:
Main line length: 30 m (98.4 ft) max.
Branch line length: 3 m (9.84 ft) max.
Total branch line length: 30 m 98.4 ft) max.
(When flat cable is used to connect fewer than 16 Slaves, the main line can be up to
100 m (328.1 ft) long and the total branch line length can be up to 50 m (164.0 ft.)
Long-distance
communications
mode
Belden #9409 or VCTF cable:
Main line length: 500 m (1640.5 ft) max.
Branch line length: 6 m (19.69 ft) max.
Total branch line length: 120 m (393.7 ft) max.
Max. number of connecting nodes 32
Error control checks Manchester code check, frame length check, and parity check
Note: A terminator must be connected to the point in the system farthest from the Master.
3MODULE SPECIFICATIONS
Current consumption 180 mA max. at 5 VDC
Number of I/O points 128 points (64 inputs/64 outputs), 64 points (32 inputs/32 outputs),
32 points (16 inputs/16 outputs) (switchable)
Number of occupied words 128 points: 4 input words/4 output words
64 points: 2 input words/2 output words
32 points: 1 input word/1 output word
PLC 128 points: CQM1-CPU41-EV1/CPU42-EV1/CPU43-EV1/CPU44-EV1
64 points: CQM1-CPU11-E/CPU21-E/CPU41-EV1/CPU42-EV1/CPU43-EV1/CPU44-EV1
32 points: CQM1-CPU11-E/CPU21-E/CPU41-EV1/CPU42-EV1/CPU43-EV1/CPU44-EV1
Number of points per node number 4/8 points (switchable)
Max. number of slaves per master 32 (4 points per node number)
Status data Alarm terminal output
Weight 200 g max.
Approved standards UL 508 (E95399), CSA C22.2 No. 142 (LR51460)

CQM1-SRM21-V1 CQM1-SRM21-V1
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3ALARM OUTPUT SPECIFICATIONS
Maximum switching capacity 2 A at 24 VDC
Minimum switching capacity 10 mA at 5 VDC
Relay G6D-1A
Minimum ON time 100 ms
Circuit configuration
2 A at 24 VDC max.
Internal
circuit
CQM1--SRM21--V1
3RATINGS
The ratings of the Unit are the same as those for the CQM1.
Nomenclature
Indicators
Indicates the operating status of the Master Module and
the status of communications with the Slaves.
DIP Switch
These pins have the following functions:
Pins 1 and 2: PLC word allocation setting
Pin 3: Number of points setting
Pin 4: Baud rate setting
Pins 5 to 6: Reserved (always OFF)
Alarm Output Terminals
These terminals are shorted when an error occurs.
Connect to a warning device.
Communications Terminals
Connect the Slaves’ transmission cable to these
terminals.
Terminal block screws
These screws attach the terminal
block. The terminal block can be
removed when these screws are
loosened.

CQM1-SRM21-V1 CQM1-SRM21-V1
Dimensions
Unit: mm (inch)
3CQM1-SRM21-V1
Note: Refer to the
CQM1 Operation Manual
for details on the dimensions
when the Master Module is installed as part of the PLC’s integrated
backplane.
110
(4.33)
32 (1.26) 107 (4.21)
Precautions
Refer to the
CompoBus/S Operation Manual (W266)
before using the module.
Cat. No. GC RIO-1 04/00 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS, INC.
OneEastCommerceDrive
Schaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V
8
416-286-6465
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