Table of Contents
1. Overview.................................................................................................. 5
2. Receipt / unpack of the products ................................................................ 6
3. Knowing the products ............................................................................... 7
3.1 Product description.............................................................................................7
3.2 Power and data pinout description .......................................................................7
3.2.1 PFLOW5001 - RS232 TTL .....................................................................................7
3.2.2 PFLOW5001 - RS232 EIA ......................................................................................8
3.2.3 PFLOW5001 - RS485 Half-duplex .........................................................................8
3.2.4 PFLOW5001 - RS485 Full-duplex ..........................................................................9
3.2.5 PFLOW5001 –I2C ................................................................................................9
3.2.6 PFLOWC5001 - RS232 TTL ................................................................................. 10
3.2.7 PFLOWC5001 - RS232 EIA .................................................................................. 10
3.2.8 PFLOWC5001 - RS485 Half-duplex ..................................................................... 11
3.2.9 PFLOWC5001 - RS485 Full-duplex ...................................................................... 11
3.3 Mechanical dimensions...................................................................................... 13
4. Installation..............................................................................................15
5. Basic operation........................................................................................16
5.1 RS232 communication protocol..........................................................................16
5.1.1 Serial port settings............................................................................................16
5.1.2 Command format..............................................................................................16
5.1.3 Response format...............................................................................................16
5.1.4 Command to read/write variables....................................................................... 17
5.1.5 Read flow rate .................................................................................................. 17
5.1.6 Read serial number ...........................................................................................18
5.1.7 Select input mode .............................................................................................18
5.1.8 Setpoint ...........................................................................................................19
5.1.9 Exhaust value ................................................................................................... 20
5.1.10 Offset calibration ........................................................................................ 20
