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5 exception responses implemented – Xylem CL500 ONLINE CHLORINE ANALYZERS MODBUS User Manual

Page 14

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CL500 Modbus (3/09)
Rev. 1.3

12

Note: Error messages shown in Prentiss and in (Italics)

4.5 Exception Responses Implemented

Code Name

Meaning

00 --

No

error

01

ILLEGAL FUNCTION

The function code is not allowed in the device.

02

ILLEGAL DATA ADDRESS

The data address is not allowed in the device

03

ILLEGAL DATA VALUE

A value contained in the query field is wrong for the device