Rockwell-automation 1775-KA PLC-3 Communication Adapter Module User Ma Manual de usuario descargar pdf (Pagina 197)

Remote Error Codes Received from the

1773-KA Module

Appendix B

B5

Error

Code Type Meaning

number

of bytes after the TNS is not a

multiple of 4.

For PLC/PLC-2 word write commands:

1.A 2-byte ADDR field is expected after

the TNS word, but only one byte is

present.

2.There is an odd number of data bytes in

the command packet.

3.The ADDR value is odd (that is, it does

not specify a word address).

For PLC-3 read commands:

1.There is more than one byte of data after

the byte address.

2.Number of bytes to read is odd.

3.Number of bytes to read is zero.

4.Number of bytes to read is greater than

the maximum allowed in reply packet

(244).

5.Sum of packet offset and size of data in

words is greater than 65,535.

6.Sum of packet offset and size of data in

words is greater than the total transaction size

For PLC-3 bit write commands:

More than 4 bytes of data exist after the

PLC-3 address in the command message.

For PLC-3 write commands:

1.There is not at least 2 bytes of data after

the end of the block address.

2.There are an odd number of data bytes

after the end of the block address.

3.Sum of packet of

fset and size values

specifies more than 65,535 words.

4.Sum of packet of

fset and size is greater

than total transaction size.

83 reply

For all PLC/PLC-2 read and write commands

The local 1775-KA module has executed a

1 2 ... 192 193 194 195 196 197 198 199 200 201 202 ... 238 239

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Rockwell-automation 1775-KA PLC-3 Communication Adapter Module User Ma Manual de usuario Pagina 197

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