Dh/dh+ error codes apendix b – Rockwell Automation 1775-S5_SR5,D17756.5.5 User Manual PLC-3 FAMILY I/0 User Manual

Page 168

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DH/DH+ Error Codes

Apendix B

B-3

Table B.A

Local and Reply Error Codes

Error Code Error Type

Associated

Commands

Meaning

32

local

all

The size of the local file involved in a file assignment command is greater than

65,535 bytes.

34

local

all

A station number greater than 376 (octal) is specified for the remote address in

an assignment command.

35

local

all

Attempt to send unprotected command is invalid.

37

local

all

The perĆpacket timeout, set through LIST, runs out before receiving a reply. This

means that the remote station acknowledges (ACK) the command message but

does not send the reply in the allotted time (cf. error 92).

81

reply

diagnostic read

A 2Ćbyte ADDR and 1Ćbyte SIZE field is missing after the FNC byte in the

command message.

The number of bytes of data requested in the SIZE field is greater than the

maximum number allowed per reply packet (244), or SIZE is 0 (zero).

reply

PLC/PLCĆ2 read

The required 2Ćbyte ADDR and 1Ćbyte SIZE field are missing in the

command message.

The ADDR value is odd (it does not specify a word address).

The value SIZE is 0.

The value SIZE is greater than 244.

The SIZE value specifies an odd number of bytes.

reply

PLC/PLCĆ2 bit write

Incomplete bit description because the number of bytes after the TNSW is not a

multiple of four.

reply

PLC/PLCĆ2 word

write

A 2Ćbyte ADDR field is expected after the TNSW word, but only one byte is

present.

An odd number of data bytes in the command packet.

The ADDR value is odd (it does not specify a word address).

reply

PLCĆ3 read

More than one byte of data is after the byte address.

Number of bytes to read is odd.

Number of bytes to read is zero.

Number of bytes to read is greater than the maximum allowed in a reply

packet (244).

Sum of packet offset and size of data in words is greater than 65,535.

Sum of packet offset and size of data in words is greater than the total

transaction size.

reply

PLCĆ3 bit write

More than four bytes of data exist after the address in the command message.

reply

PLCĆ3 write

Less than two bytes of data are after the end of the block address.

An odd number of data bytes is after the end of the block address.

Sum of packet offset and size values specifies more than 65,535.

Sum of packet offset and size is greater than total transaction size.

83

reply

PLC/PLCĆ2/PLCĆ3

read and write

The local scanner has executed a shutdown request to the local PLCĆ3 controller.

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