Moxa MPC-2157Z-T [60/70] Display control interface command format

Moxa MPC-2157Z-T [60/70] Display control interface command format
MPC-2190 Hardware Display Control Interface
6-4
You will now see the firmware version displayed in the terminal (1.0, in the screenshot above). For details
about the available commands and how they are used, refer to Appendix B: Display Control Interface
Commands.
Display Control Interface Command Format
Each command conforms to the following packet structure:
Byte # 0 1 2,3,4 5 6 7, etc 7+LEN
ATTN ADDR CMD LEN IHCHK DATA IDCHK
The minimal command size is 7 bytes, and the maximal command size is 82 bytes.
Command Format Description
ATTN (Attention)
This byte is used to identify a start of command, and it can be one of three values:
ATTN Description
0x07 Command (ASCII BELL)
0x06 Acknowledge (ASCII ACK)
0x15 Negative Acknowledge (ASCII NAK)
A device shall send a command using the 0x07 Attention Code. The unit will respond to the command with either
an ACK if the command completed successfully, or a NAK if the command failed.

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