Chang Min Flow Meter Communication Driver is the driver to communicate with flow meter of Chang Min Tech Co., Ltd. in Korea.
<Figure 1> is read setting example of Chang Min Flow Meter communication driver.
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| <Figure 1> Read setting example of Chang Min Flow Meter communication driver |
Device part of <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively.
Chang Min Flow Meter communication driver’s read schedule
Read schedule setting parameters are as follows:
1) STATION – Don't care.
2) Read command – Don't care.
3) Read start address – Don't care.
4) Save start address for Communication Server – Saving start address of Communication Server.
5) Read Size – Fixed to 1.
Read schedule example)
READ, 0, , 0, 0, 1,
Note) Chang Min Flow Meter designed to communicate with periodically(1 second) data sending from controller.
<Table 1> is a description of store values and contents of Chang Min Flow Meter communication driver's read data.
Store Values |
Contents |
Data type address |
Start Addr + 1 |
Sum flow rate value |
1 |
Start Addr + 2 |
Current flow rate value |
2 |
| <Table 1> Store values and contents of Chang Min Flow Meter communication driver's read data | ||
Chang Min Flow Meter communication driver store the same data in WORD, DWORD, FLOAT memory, but the data format are different.
Chang Min Flow Meter communication driver don't support writing settings.
Please connect normal RS-232C serial communication calbe to front 9pin socket of controller such as <Figure 4>.
<Figure 2> is appearance of Chang Min Flow Meter.
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| <Figure 2> Appearance of Chang Min Flow Meter |