Brooks 5850 S, Инструкция по установке и эксплуатации

Страница: 36 / 50

36
Installation and Operation Manual
X-DPT-Profibus-DP-Interface-eng
PN 541-C-068-AAG
November, 2008
In the memory map of the MFC and MFM are mainly actual variables for e.g.
flow, setpoint and so on. One special case here is the CMD or command byte.
Through this byte there is the possibility to control the totalizer and Valve
Override functions. Using the output the function is sent to the MFC or MFM
while the internal command status can be read back via the input data.
I/O memory map MFC, Mass Flow Controller bimf5801.gsd
module 1: “out[Setp],in[Flow]”
Output
description byte # byte size type
Setp setpoint 0…..3 4 floating point
Input
description byte # byte size type
Flow flow 0…..3 4 floating point
I/O memory map Mass Flow Controller bimf5801.gsd
module 2: “out[Setp,CMD],in[Flow,Tot,CMD]”
Output description byte # byte size type
Setp setpoint 0…..3 4 floating point
CMD command 4…..7 1 unsigned byte
Input description byte # byte size type
Flow flow 0…..3 4 floating point
Tot totalizer 4…..7 4 floating point
CMD command 8 1 unsigned byte
I/O memory map Mass Flow Controller bimf5801.gsd
module 3: “Maximum Configuration”
Output
description byte # byte size
Setp setpoint 0…..3 4 floating point
CMD command 4 1 unsigned byte
Input
description byte # byte size type
Setp actual setpoint of the MFC 0…..3 4 floating point
Flow flow 4…..7 4 floating point
Temp temperature 8…11 4 floating point
Tot totalizer 12..15 4 floating point
Valv valve drive indicator 16..19 4 unsigned integer
CMD command 20 1 unsigned byte
I/O memory map Mass Flow Meter bimf5861.gsd
module 1: “out[-],in[Flow]”
Output
description byte # byte size type
- - - - -
Input
description byte # byte size type
Flow flow 0…..3 4 floating point
I/O memory map Mass Flow Meter bimf5861.gsd
module 2: “out[CMD],in[Flow,Temp,Tot,CMD]”
Output
description byte # byte size type
CMD command 0 1 unsigned byte
Input
description byte # byte size type
Flow flow 0…..3 4 floating point
Temp temperarure 4…..7 4 floating point
Tot totalizer 8…11 4 floating point
CMD command 12 1 unsigned byte