LSIS XBL-C21A User Manual

Chapter 7 XGT Dedicated Protocol
7-15
(d) XGB Response format (NAK response)
Format name Header
Station No.
Command Command type
Error code (Hex 2 Byte)
Tail Frame check
Frame (Example)
ENQ H10 W(w) SB H1132 EOT BCC
ASCII value
H05 H3130 H57(77) H5342 H31313332 H03
Item Description
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, Refer to
9.1.4 XGT dedicated communication error codes and countermeasures.
(e) Example
This example supposes that 2 byte H’AA15 is written in D000 of station No. 1.
1) PC request format (PC → XGB)
Format name Header
Station
No.
Command
Comman
d type
Device
Length
Device
Number of
data
Data Tail Frame check
Frame
(Example)
ENQ H01 W(w) SB H06 %DW000 H01 HAA15 EOT BCC
ASCII value
H05 H3031 H57(77) H5342 H3036
H2544573030
30
H3031 H41413135 H04
2) For ACK response after execution of command (PC ← XGB)
Format name Header Station No.
Command Command type
Tail Frame check
Frame (Example)
ACK H01 W(w) SB ETX BCC
ASCII value
H06 H3031 H57(77) H5342 H03
3) For NAK response after execution of command (PC ← XGB)
Format name Header Station No.
Command Command type
Error code
Tail Frame check
Frame
(Example)
NAK 01 W(w) SB
Error code (2)
ETX BCC
ASCII value
H15 H3031 H57(77) H5342
Error code (4)
H03

LSIS XBL-C21A Specifications

General

Brand	LSIS
Model	XBL-C21A
Category	Controller
Language	English