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4
1-1
Features
•
The CQM1-B7A
jj
Interface Unit incorporates the B7A transmission opera-
tions for the CQM1H/CQM1 I/O Unit.
•
The following five models of CQM1H/CQM1 B7A Interface Unit are available.
Model
No. of points
Input
Output
CQM1-B7A21
16
16
CQM1-B7A13
32
0
CQM1-B7A03
0
32
CQM1-B7A12
16
0
CQM1-B7A02
0
16
•
Each Unit can be connected to the same number of points on 16-point B7A
Link Terminals as provided by the Unit. For example, two B7A Link Terminal
Units with 16 input points each can be connected to a CQM1-B7A13.
•
The transmission delay time can be switched between STANDARD (19.2 ms
rated) or RAPID (3 ms rated).
•
The data processing when a transmission error occurs can be switched be-
tween HOLD (see note 1) and LOAD OFF (see note 2).
•
The CPU treats the B7A Interface Units as the equivalent number of points. It
can handle remote I/O equipment, such as switches and lamps, without recog-
nizing communications.
Note
1. HOLD: When an error occurs, the input bit status immediately prior to the
error is held.
2. LOAD OFF: When an error occurs, all input bits turn off.
The B7A Link Terminal is a terminal board that incorporates a communication
function, connects to external I/O devices, and communicates with a PC over a
single cable, thus reducing wiring effort.
CQM1-B7A21 is an upgraded version of the CQM1-B7A01 and can replace the
CQM1-B7A01.
The features listed in the table below have been added to the CQM1-B7A21.
Item
CQM1-B7A01
CQM1-B7A21
Transmission delay time
STANDARD only
STANDARD/RAPID
switchable
Transmission error
processing
HOLD
HOLD/LOAD OFF
switchable
Note CQM1-B7A01 is no longer in production. Use the upgraded CQM1-B7A21.
Differences Between
CQM1-B7A01 and
CQM1-B7A21
Features
Section 1-1
Summary of Contents for CQM1H - 08-2005
Page 1: ...Cat No W238 E1 8 Dedicated I O Units CQM1H CQM1 series OPERATION MANUAL SYSMAC ...
Page 2: ......
Page 3: ...CQM1H CQM1Series Dedicated I O Units Operation Manual Revised August 2000 ...
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Page 21: ...1 PART I B7A Interface Unit CQM1 B7A02 CQM1 B7A03 CQM1 B7A12 CQM1 B7A13 CQM1 B7A21 ...
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Page 45: ...25 PART II G730 Interface Unit CQM1 G7M21 CQM1 G7N01 CQM1 G7N11 ...
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Page 74: ...Appendix A Specifications 54 Dimensions Common for Master and Expansion Master Unit mm ...
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Page 79: ...59 PART III I O Link Unit CQM1 LK501 ...
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Page 93: ...73 PART IV Analog Input Unit and Analog Power Supply Units CQM1 AD041 CQM1 IPS01 CQM1 IPS02 ...
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Page 121: ...101 PART V Analog Output Unit and Analog Power Supply Units CQM1 DA021 CQM1 IPS01 CQM1 IPS02 ...
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Page 187: ...167 PART VII Linear Sensor Interface Units CQM1 LSE01 CQM1 LSE02 ...
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