Structure Of Command Text; Pdu Structure; Area Definitions; Type Code (Variable Type) - Omron EasySpeed 3G3JV Series Communications Manual

CompoWay/F Communications Procedures
2-2

Structure of Command Text

PDU Structure

• An MRC (Main Request Code) and SRC (Sub-Request Code) followed by the various required data
are transferred in the command text field.
Service Request PDU
MRC SRC
• The MRES (Main Response Code) and SRES (Sub-Response Code) are transferred in the
response frame following the MRC and SRC. Data is then transferred following the MRES and
SRES.
Service Response PDU (Normal Response)
MRC SRC MRES
• If the specified command text could not be executed, the service response PDU will contain only
the MRC, SRC, MRES, and SRES.
MRC SRC MRES
MRES and SRES will provide a response code other than a code for normal completion.

Area Definitions

Only the variable area is used.

Type Code (Variable Type)

The following tables show the variable area type codes.
Variable type (1 byte)
MSB
1 1 0 0
Access size
11: Double word
The following table summarizes setup areas 0 and 1.
Area
Setup area 0 This area groups together the RUN Mode and Adjustment Mode.
Setup area 1 This is the area for the Initial Settings Mode.
Data
SRES
SRES
LSB
0 0
Area
0: Setup area 0
1: Setup area 1
Data
Read/Write
0: Read only
1: Read/Write
Description
Chapter 2
2-7