Omron EJ1 User Manual

128
Programless Communications Section 5-1
• Stop Operation
Operation is stopped after a series of operations has been completed.
■ Monitor Values
If the monitor value has a decimal point, keep the decimal point in mind when
handling the monitor value.
Example: monitor value 03E8H or 1000
→ 100.0
The set value in the EJ1 will not change even if the monitor value is changed.
■ Checking Programless Communications Operation from the PLC
To confirm that programless communications are working from the PLC, con-
firm that reserved bit 15 of the Communications Status under the Programless
Download Settings is changing. Bit 15 repeatedly turns ON/OFF during com-
munications. Bit 15 alternates between ON and OFF, changing at each pro-
gramless communications.
Example: Multi Read
Each time all the parameters set under Programless Upload Settings are
written to the PLC, bit 15 changes between ON and OFF.
Upload Area Download Area
Value
Setting Change
Response Bits
Operation Command
Response Bits
Address ValueAddress
m+0
m+1
m+2
m+4
···
n+0
n+1
n+2
n+4
Setting Change
Request Bits
Operation Command
Request Bits
Set value
Communications
Status
m+3 n+3
Operation
Command Code
0000
XXXX
0000
PLC
1. The Read Request Bits
are cleared by the PLC.
2. The EJ1 clears the Read
Response Bits.

Omron EJ1 Specifications

General

Brand	Omron
Model	EJ1
Category	Temperature Controller
Language	English