Omron CQM1-ARM21, Operation Manual

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Master Operation Modes
Section 4-3
28
from the LDS with the SET switch. This data is stored in non-
volatile memory.
CDI Configuration Data Image.
This array contains copies of the actual input/output configuration
and the identification code of all slaves (0 ...31), determined by
reading this data from the slaves. The configuration data of inac-
tive slaves is set to default values (FF
H
).
PCD Permanent Configuration Data.
This array contains the projected input/output configuration and
identification code of all slaves (1 ...31), created either by local
configuration of the master using Set_Permanent_Configuration
commands, or copied from the CDI with the SET switch. The per-
manent configuration data of slaves that are not projected is set to
default values (FF
H
). This data is stored in non-volatile memory.
PI Parameter Image.
This array contains the copies of the actual parameters of all ac-
tive slaves (1...31). The PI data of inactive slaves is set to default
values (F
H
).
PP Permanent Parameter.
This array contains the configured parameters of all slaves
(1...31), created either by local configuration of the master using
Set_Permanent_Parameter commands, or copied from the PI with
the SET switch. This data are stored in non-volatile memory. After
master power on, the master copies the PP array to the PI array.
4-3 Master Operation Modes
The CQM1-ARM21 can be used in three different modes of operation.
Selection of operation modes is done by:
1. the ’MOD’ switch on the front of the unit (SW 5)
2. the ’Mode’ Bit in the Command area (IR m.01)
Indication of the actual operation mode is by:
1. the CM LED on the front of the unit
2. the ’Mode’ Flag in the Status area (IR n.00)
The mode and indications related to each combination can be found in the
diagram below. If, for any reason, a selected mode cannot be activated, the
ERR LED will be turned ON.
Mode Bit
MOD switch
OFF (0) ON (1)
OFF
Configuration Mode
CM LED ON
Mode Flag OFF
Setup Mode
CM LED ON
Mode Flag ON
ON
Protected Mode
CM LED OFF
Mode Flag OFF
Protected Mode
CM LED OFF
Mode Flag OFF
Protected Mode Configuration Mode Setup Mode