Omron GRT1 - 11-2007 Operation Manual page 342

Explicit Messages
Explicit Read
message /write
Data Com- Write/ Sets the threshold for
parison Read comparison with the
between result of data compari-
Channels son between channels.
Threshold
Set
Extension Read Reads the Status Flags
Status Flag below.
Read
1 to 7 OR = 0
1: Over range
2: Under range
3: Scaling overflow
4: Scaling underflow
5: Rate of change over-
flow
6: Rate of change
underflow
7: Sensor off-wire condi-
tion
Note (1) The instance ID specifies the Slice I/O Unit's unit number (1 to 64).
(2) Specifies input 0.
(3) Specifies input 1.
(4) Parameter related to the data comparison between input 0 and input 1.
(5) Parameter related to the data comparison between input 1 and input 0.
Explicit Messages for Counter Units and Positioning Units
Explicit Read/
message write
Digital Input Read Reads the current
Monitor status of the digi-
tal input.
Digital Input Read Reads the com-
Name ment set for the
digital input.
Writes the com-
Write
ment for the digi-
tal input.
Function
Service
code
Write:
10 hex
Read:
0E hex
0E hex
Function
Service Class
code
0E hex 8E hex 01 to 40
0E hex 8E hex 01 to 40
10 hex 8E hex 01 to 40
Command
Class Instance Attribute
ID ID ID
8F 01 to 40 AD hex
*2 *1
hex hex
90
*3
hex
8F 01 to 40 74 hex
*2 *1
hex hex
90
*3
hex
Command
Instance Attribute
ID ID ID
64 hex
*1
hex
65 hex
*1
hex
65 hex
*1
hex
Appendix A
Response
Data
4 bytes 4 bytes
1 byte
Response
Data size
--- 1 byte
00 hex: OFF
01 hex: ON
--- 1 to 32 bytes
Contains the
stored comment in
ASCII.
1 to 32 bytes
---
The comment to
set in ASCII.
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