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
3.21. Query for Inlet Pressure (GF125 Only)
Master Controller will use this message to query the current pressure
transducer reading.
Request message from Master controller to digital MFC controller
MAC ID (Targeted MFC Controller address)
STX(0x02)
Command Code(0x80 for read)
Packet Length(0x03)
Class ID(0x31)
Instance ID(0x02)
Attribute ID(0x06)
Pad(0x00)
Checksum (0xBE)
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