Section 3 - Message Protocol Details
Installation and Operation Manual
X-DPT-RS485-GF100-Series-MFC-eng
Part Number: 541B183AAG
March, 2020
Brooks RS485 L-Protocol MFCs
3. Message Protocol Details
The following sub-sections describe in detail the supported messages.
3.1. Query for MAC ID
Master controller will use this message to query the existence of a MFC
controller.
Query message from Master controller to a digital MFC controller
MAC ID (Targeted MFC controller address)
STX(0x02)
Command Code(0x80 for read)
Packet Length(0x03)
Class ID(0x03)
Instance ID(0x01)
Attribute ID(0x01)
Pad(0x00)
Checksum(0x8A)
7