4 response error codes, Caution – Yokogawa JUXTA M Series Digital Limit Alarms MVTK User Manual

Page 45

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<4. Ladder Communication >

4-5

IM 77J04J11-01E 1st Edition : 2006.08.25-00

4.2.4

Response Error Codes

Data that the master station (PLC) will receive in the event of an error and the description of
errors are given in the table below.

0101/0103/0000/0001/CR/LF

Read/write data

0, 0, R/W, and +/-

Parameter number

Address number and CPU number

Note: Slashes (/) in the following send and receive data examples are used for explanatory purposes only, and are not part of

the actual data string.

Table 4-2 List of Error Codes

A non-existent parameter was set.

0101/0451/0000/0001/CR/LF

0101/0451/0000/FFFF/CR/LF

0101/0420/0000/000B/CR/LF
0101/0420/000B/0000/CR/LF
0101/0420/0B00/0000/CR/LF
0101/042B/0000/0000/CR/LF

0101/FFFF/FFFF/FFFF/CR/LF

Characters other than a BCD code (0 to 9)
were used other than in an address number.

* This excludes LF (0A).

0101/0420/0000/000A/CR/LF
0101/0420/000A/0000/CR/LF
0101/0420/0A00/0000/CR/LF
0101/040A/0000/0000/CR/LF

No response

An LF code (0A) was used other than in
an address number.

0103/0420/0000/0000/CR/LF
0001/0420/0000/0000/CR/LF
3301/0420/0000/0000/CR/LF

An address differed from the address
numbers of the M Series.

* In the example at right, none of the address numbers exist.

No response

0101/0420/0000/00/CR/LF
0101/0420/0/CR/LF
0101/0/CR/LF

No response

The command length (length of the send
data) is incorrect.

* The command length, including CR and LF, must be 10 bytes.

0101/012

No response

A timeout occurred during communication.

* Timeout is 2 seconds.

The buffer overflowed.

* This error occurs when the buffer overflow exceeds 368 bytes.

No response

A framing error or a parity error occurred.

No response

Description of Error

Example of Data Sent

by Master Station

Data Received

by Master Station

FFFF is returned.

CAUTION

If a parameter not existing in the D register table is read, an error will not occur. In this
case, 0 will be returned instead.

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