INFICON Maxtek PM-700 Plating Monitor - Manual (Page 56)

PM-700 SERIES PLATING MONITOR
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4.8.4.1 RS-232 Interface
The PM-700 Series Plating Monitor will communicate through a standard RS-232
Serial I/O port. Through this port, the host computer will be able to initiate the
following classes of operations:
1. Upload parameter store from the plating monitor to host computer.
2. Restore parameter store from host computer to the plating monitor.
3. Remotely activate the monitor.
4. Upload the monitor status from the plating monitor to host computer.
5. Start or stop automatic data transmission from the monitor to host computer.
6. Upload single data log from plating monitor to host computer.
4.8.4.2 Protocol
These operations are initiated by the host computer by sending messages to the
monitor. All messages sent and received by the plating monitor must be in the
following format:
1. Two Byte header - FFh, FEh or Chr$(FFh)+Chr$(FEh)
2. One byte instruction code:
a. 10h - Upload parameter store
b. 20h - Restore parameter store
c. 30h - Remotely activate
d. 40h - Upload monitor status
e. 50h - Establish automatic data logging
f. 60h - Upload single data log
1. One byte message length.
2. Message or command code.
3. One byte checksum. (The checksum is the compliment of the one byte sum of
all bytes from the instruction code to the end of the message or command.)
The plating monitor's RS232 port is set up to operate with the following
specifications:
9600 - Baud
8 - Bit data
No - Parity
1 - Stop bit