Omron E5AN-H User Manual

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Appendix
Note For details on errors, refer to E5CN-H/E5AN-H/E5EN-H Digital Controllers Communications Manual
Advanced Type (Cat. No. H159).
The communications line became unstable
when Controller power was turned ON or
interrupted, and the host device read the
unstable status as data.
Initialize the reception buffer in the host device before sending the first
command and after turning OFF the power to the Controller.
The communications data was corrupted
from noise from the environment.
Try using a slower baud rate.
Separate the communications cable from the source of noise.
Use a shielded, twisted-pair cable for the communications cable.
Use as short a communications cable as possible, and do not lay or loop
extra cable.
To prevent inductive noise, do not run the communications cable parallel
to a power line.
If noise countermeasures are difficult to implement, use an Optical Inter-
face.
Meaning Countermeasures

Omron E5AN-H Specifications

General

Brand	Omron
Model	E5AN-H
Category	Temperature Controller
Language	English