Omron EasySpeed 3G3JV Series - Addresses; Number of Elements; List of Services

Chapter 2
2-8
CompoWay/F Communications Procedures
The variable type is converted to 2-byte ASCII and appended to the frame.
The following table shows the available variable types.
Note Setup area 1 has no read-only parameters, so there is no variable type “C2.”
■ Addresses
An address is appended to the variable type. Express addresses in 2-byte hexadecimal and append
them for each specified access size.
■ Number of Elements
Specify the number of elements within the range “0000 to 0002.” The number of elements is
expressed in 2-byte hexadecimal.
■ List of Services
Note No services will be accepted and no responses will be returned when a memory error occurs
or during initial status (until normal operation begins after the power is turned ON).
Variable type Description
C0 Double-word data. R/O (read only) parameters for setup area 0.
C1 Double-word data. R/W (read/write) parameters for setup area 0.
C3 Double-word data. R/W parameters for setup area 1.
MRC SRC Name of service Processing
01 01 Read Variable Area This service reads from the variable area.
01 02 Write Variable Area This service writes to the variable area.
05 03 Read Controller Attributes This service reads the model number and communications
buffer size.
06 01 Read Controller Status This service reads the operating status.
08 01 Echoback Test This service performs an echoback test.
30 05 Operation Command This service performs operations such as resets and mov-
ing to Setup Area 0 or 1.