IDEC High Performance Series - Manual (Page 596)

Chapter 4
578
External Device Setup Manual
7.1.2 Response
Format: Normal response
Format: Error response
7.1.3 Response Command
Detailed description: Normal response
Command Code Description Bytes
STX 02h Response start 1
R 52h Read response 1
DM address Starting DM address for read.
This is expressed as the ASCII code of the hexadecimal value of the
address. 4
Words Number of words to read
The hexadecimal value expressed using ASCII code. 2
Data DM address data
The hexadecimal value expressed using ASCII code.
The words are in order from the lowest address. 4 x N
N is the number of
words
ETX 03h Only required when 'with BCC' is set.
At the end of the response data. 1
BCC Only required when 'with BCC' is set.
Exclusive OR (HEX) from ENQ to before BCC converted to ASCII code. 2
CR 0Dh End 1
Detailed description: Error response
Command Code Description Bytes
NAK 15h Command was not received correctly. 1
Error Code Refer to 10 Error Processing. (Only Protocol format 1) 1
CR 0Dh End. (Only Protocol format 1) 1