Section 3 - Message Protocol Details
Installation and Operation Manual
Brooks RS485 L-Protocol MFCs
X-DPT-RS485-GF100-Series-MFC-eng
Part Number: 541B183AAG
March, 2020
Response message from a digital MFC controller to Master controller
MAC ID (0
– Master controller)
STX(0x02)
Command Code(0x80 for read)
Packet Length(0x05)
Class ID(0x6A)
Instance ID(0x01)
Attribute ID(0xA6)
Data Byte #1(LSB)*
Data Byte #2(MSB)*
Pad(0x00)
Checksum
*See New Setpoint Conversion Table Pg. 51
18