Omron EJ1G, User Manual, Page: 158 / 237

137
Detailed Description of Services
Section 6-4
6-4-6 Composite Read Registration
This service specifies the addresses to be read when using the composite
read registration from variable area service.
The registered data is saved in EEPROM.
■
Command
Service Request PDU
■
Response
Service Response PDU
1. Variable Type and Read Address
Refer to Parameter List on page 175.
Composite reads/writes cannot be registered for the DA/9A variable types.
2. Bit Position
The EJ1G does not support bit access. Fixed to 00.
3. No. of Registered Data Items (Variable Type + Read A Bit Posi-
tion)
4. Response Codes
MRC
2 2
0 1
4
SRC
2 2
0 0
2 4 2
0 0 1 1
Variable
type
Read address Bit
position
Variable
type
Read address Bit
position
Registered data length No. of registered data items
For double-word (8-digit) variable type 20 max. (0014H)
For word (4-digit) variable type
Response code Error name Cause
1002 Command too short The command is not long enough.
1101 Area type error The corresponding variable type does not
exist.
1100 Parameter error Bit position is not 00.Write data is out of
setting range.
2201 Operation error (2201) The command cannot be executed during
operation.
7011 Operation error (7011) The command cannot be executed due to
a device error.
7013 Operation error (7013) The command cannot be executed
because the operation command cannot
be received.
7014 Operation error (7014) The command cannot be executed during
backup.
7015 Operation error (7015) The command cannot be executed during
reset (including startup).
7041 Operation error (7041) The command cannot be executed in
manual operation mode.
7042 Operation error (7042) The command cannot be executed in tun-
ing mode.
0000 Normal completion Processing was completed normally.
MRC
2 4
SRC
2
0 1 1 1
Response code