Rs-232C Port Servicing Time (Cpm2A/Cpm2C/Srm1(-V2) Only); Peripheral Port Servicing Time; Cycle Monitor Time - Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual

Basic PC Operation and I/O Processes

1-2-4 RS-232C Port Servicing Time (CPM2A/CPM2C/SRM1(-V2) Only)

1-2-5 Peripheral Port Servicing Time

1-2-6 Cycle Monitor Time

18
Note DM 6602 itself can still be changed after the program memory has been write-
protected by setting bits 04 to 07 of DM 6602 to 1.
The following settings are used to determine the percentage of the cycle time
devoted to servicing the RS-232C port.
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 cycle time
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.
The following settings are used to determine the percentage of the cycle time
devoted to servicing the peripheral port.
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 cycle time
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.
Cycle Monitor Time Enable and Units
00: Setting disabled (time fixed at 120 ms)
01: Setting in 00 to 07 enabled; units:10 ms
02: Setting in 00 to 07 enabled; units:100 ms
03: Setting in 00 to 07 enabled; units:1 s
Cycle monitor time setting (When bits 08 to 15 are not 00)
00 to 99 (2 digits BCD; units set in bits 08 to 15.)
Default: 120 ms.
Section
Bit
15 0
DM6616
Bit
15 0
DM6617
Bit
15 0
DM6618
1-2