Omron E5EC Communications Manual

2 CompoWay/F Communications Procedures
2 - 6
E5@C Digital Temperature Controllers Communications Manual (H175)
2-2 Structure of Command Text
An MRC (Main Request Code) and SRC (Sub-Request Code) followed by the various required data is
transferred to the command text.
• Service Request PDU
The MRES (Main Response Code) and SRES (Sub-Response Code) are transferred to the
response frame following the above MRC/SRC. Data is then transferred following the MRES and
SRES.
• Service Response PDU (Normal Response)
If the specified command text could not be executed, the service response PDU will contain only the
MRC/SRC and MRES/SRES.
• Service Response PDU (Command Text Not Executed)
MRES/SRES provides the response code. MRES/SRES are not output when processing ends in a
normal completion.
Areas comprise only the variable area.
The following figure shows the variable area type code.
The following table summarizes setup areas 0 and 1.
The type code depends on the parameter. Refer to 3-1 Variable Area (Setting Range) List for details.
2-2-1 PDU Structure
2-2-2 Area Definitions
2-2-3 Type Code (Variable Type)
Area Description
Setup area 0 This area groups together the protect, manual control, operation, and adjustment
levels.
Setup area 1 This area groups together the initial setting, communications setting, advanced
function setting, and calibration levels.
MRC SRC
Data
MRC SRC DataMRES SRES
MRC SRC MRES SRES
0000
LSBMSB
Variable type (1 byte)
Access size
11: Double word
10: Word
Area
0: Setup area 0
1: Setup area 1
Read/Write
0: Read only
1: Read/Write

Omron E5EC Specifications

General

Brand	Omron
Model	E5EC
Category	Temperature Controller
Language	English