Variable Areas; Addresses - Omron E5AR-T User Manual

Section 7 Modbus Communications

7.4 Variable Areas

The areas used for data exchange when communicating with the E5AR-T/ER-T are called the variable
areas. Present values can be read, and set values can be read and written using the variable areas of the
E5AR-T/ER-T.
Operation commands do not use the variable areas.

■ Addresses

● Area Numbers
7-8
Operation
commands and
responses
Read/write
Personal computer
A variable area is accessed by specifying the position of a variable
within the variable area using the channel identifier, area number, and
address in the area.
Addresses are allocated within each variable type. Addresses are two
bytes long and written in hexadecimal. Addresses are allocated
according to access size. Each address consists of a channel
identifier, area number, and the address in the area.
Address (2 bytes)
Channel Area number (00 to 3F)
(0 to 3)
Area numbers in the variable area are listed in the following table.
Variable
type
04 Communications Monitor
05 Protect Level
06 Operation Level
07 Adjustment Level
08 Adjustment 2 Level
09 Alarm Set Setting Level
0A PID Setting Level
0B Approximation Setting Level
18 Program Setting Level
19 Time Signal Setting Level
E5AR/ER-T
Microprocessor
Variable area
0
A6 A5 A4 A3 A2 A1 A0
Address in area (00 to FE)
Description Area
Setting area 0
(Operation in
progress.)