Reference Guide User Manual

8.10.5 Report Slave ID

This command query’s a device for ID information.

• The Data Payload layout is defined in the Slave ID Format section.

• The Byte Count field is the number of bytes from the Slave ID field to the end of the Data

Payload (excludes the 2 byte CRC).

• Run Status – must be 0x00 or 0xFF.

Slave ID Layout Example

Byte Offset Field Description Type Value

0 Device Address byte 1-247

1 Function Code byte 0x11

2 Byte Count byte 23

3 Slave ID byte 0x49 (‘I’)

4 Run Status Indicator byte 0x00 = Off, 0xFF = On

Device Specific Info

5 Slave ID Format Version ID byte 0x01

Format Version 1 ID Block

6-7 Manufacturer ID ushort 0x5349 (‘SI’)

8-9 Device ID ushort

10-11 Application Firmware Version ushort Version * 100

12-13 Boot Code Firmware Version ushort Version * 100

14-15 Hardware Version ushort

16-17 Register Map Template ID ushort

Message (4 bytes): Response (N bytes):

Address 1 Byte 1-247 Address 1 Byte 1-247

Function Code 1 Byte 0x11 Function Code 1 Byte 0x11

CRC 2 Bytes Byte Count 1 Byte 0 to 0xFF

Slave ID 1 Byte 0 to 0xFF

Run Status 1 Byte 0 to 0xFF

Data Payload N Bytes

CRC 2 Bytes