Omron CPM1 Programming Manual

18
Basic PC Operation and I/O Processes Section 1-2
1-2-4 RS-232C Port Servicing Time (CQM1/SRM1 Only)
The following settings are used to determine the percentage of the cycle time
devoted to servicing the RS-232C port.
Example: If DM 6616 is set to 0110, the RS-232C port will be serviced for
10% of the cycle time.
The servicing time will be 0.34 ms minimum.
The entire servicing time will not be used unless processing requests exist.
1-2-5 Peripheral Port Servicing Time
The following settings are used to determine the percentage of the cycle time
devoted to servicing the peripheral port.
Example: If DM 6617 is set to 0115, the peripheral port will be serviced for
15% of the cycle time.
The servicing time will be 0.34 ms minimum.
The entire servicing time will not be used unless processing requests exist.
1-2-6 Cycle Time
Make the settings shown below to standardize the cycle time and to eliminate
variations in I/O response time by setting a minimum cycle time.
If the actual cycle time is shorter than the minimum cycle time, execution will
wait until the minimum time has expired. If the actual cycle time is longer than
15 0
Bit
Servicing time setting enable
00: Disabled (5% used)
01: Enabled (setting in bits 00 to 07 used)
Servicing time (%, valid with bits 08 to 15 are 01)
00 to 99 (BCD, two digits)
Default: 5% of c
y
cle time
DM6616
15 0
Bit
Servicing time setting enable
00: Disabled (5% used)
01: Enabled (setting in bits 00 to 07 used)
Servicing time (%, valid with bits 08 to 15 are 01)
00 to 99 (BCD, two digits)
Default: 5% of c
y
cle time
DM6617
15 0
Bit
DM6619
Cycle time (4 digits BCD)
0000:Cycle time variable
0001 to 9999: Minimum cycle time (Unit: 1 ms)
Default: Cycle time variable

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)