Omron CPM1 Programming Manual

396
CQM1 Cycle Time and I/O Response Time Section 7-1
When cyclic output refreshing is used:
Minimum I/O response time = 8 + 15
× 2 + 10 = 48 ms
When direct output refreshing is used:
Minimum I/O response time = 8 + 15 + 10 = 33 ms
7-1-4 One-to-one Link I/O Response Time
When two CQM1s are linked one-to-one, the I/O response time is the time
required for an input executed at one of the CQM1s to be output to the other
CQM1 by means of one-to-one link communications.
One-to-one link communications are carried out reciprocally between the
master and the slave. The respective transmission times are as shown below,
depending on the number of LR words used.
The minimum and maximum I/O response times are shown here, using as an
example the following instructions executed at the master and the slave. In
this example, communications proceed from the master to the slave.
The following conditions are taken as examples for calculating the I/O
response times.
Input ON delay: 8 ms
Master cycle time: 10 ms
Slave cycle time: 14 ms
Output ON delay: 10 ms
Direct output: Not used.
Number of LR words: 64
Note The input ON delay for DC Input Units can be set in the PC Setup.
Minimum I/O Response
Time
The CQM1 responds most quickly under the following circumstances:
1,2,3... 1. The CQM1 receives an input signal just prior to the input refresh phase of
the cycle.
2. The master to slave transmission begins immediately.
Number of words used Transmission time
64 words (LR 00 to LR 63) 39 ms
32 words (LR 00 to LR 31) 20 ms
16 words (LR 00 to LR 15) 10 ms
Input
Output (LR) Input
(LR)
Output

Omron CPM1 Specifications

General

Model	CPM1
Manufacturer	Omron
Instruction Set	Basic and advanced instructions
Power Supply	100 to 240 VAC or 24 VDC
Communication	RS-232C
I/O Points	10, 20, 30, or 40 points depending on the model
Timers	Yes, multiple timers available
Counters	Yes, multiple counters available
Input Voltage	24V DC
Output Type	Relay or transistor
Number of I/O Points	10, 20, 30, 40
Communication Ports	RS-232C (optional)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C
Humidity	10% to 90% (non-condensing)
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Program Memory	2048 steps (2K steps)