IMO Precision Controls K7 Series User Manual

Chapter8 Communication Function
8-15
(4) Response format (NAK response)
Format name Header Station No. Command Command type
Error code
(Hex 2 Byte)
Tail Frame check
Ex. of frame
NAK H10 r SB H1132 ETX BCC
ASCII value
H15 H3130 H72 H5342 H31313332 H03
Item Explanation
BCC
When command is lowercase(r), only one lower byte of the value resulted by adding 1 Byte
each to ASCII values from NAK to ETX is converted into ASCII and added to BCC, and sent.
Error code
Hex and 2 bytes(ASCII code, 4 bytes) indicate error type. For the details, see 8.1.8 Error
codes.
(5) Example
This example supposes that 2 WORDs from M000 of station No. 10 is read and BCC value is checked.
Also it is supposed that data in M000 and in M001 is as follow:
M000 = H1234
M001 = H5678
①
Computer request format (PC
→
MK80S Base Unit)
Format name Header Station No. Command
Command
type
Device length Device name Number of data Tail Frame check
Frame (Example) ENQ H0A r SB H06 %MW000 H02 EOT BCC
ASCII value H05 H3041 H72 H5342 H3036
H254D5730
3030
H3032 H04
②
For ACK response after execution of command(PC
←
MK80S Base Unit)
Format name Header Station No. Command
Command
type
Number of
data
Data Tail Frame check
Frame (Example) ACK H0A r SB H04 12345678 ETX BCC
ASCII value H06 H3041 H72 H5342 H3034 H3132333435363738 03
③
For NAK response after execution of command(PC
←
MK80S Base Unit)
Format name Header Station No> Command Command type
Error code Tail BCC
Frame (Example) NAK H0A r SB Error code (2Byte) ETX BCC
ASCII value H15 H3041 H72 H5342 Error code (4Byte) H03

IMO Precision Controls K7 Series Specifications

General

Brand	IMO Precision Controls
Model	K7 Series
Category	Controller
Language	English