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I try to connect Tatsuno Dispensing Pump to computer. Connection via RS485. But I don't know the protocol. I try to send 4 byte ($04 $40 $51 $05) from my computer and the pump send respond $04. The response from the pump just 1 byte. I need to know totalizer display and current liter displayed on the machine. Any one have that protocol??
COM Setting: 19200bps, parity EVEN, data bit 8, stop bit 1.
COM Setting: 19200bps, parity EVEN, data bit 8, stop bit 1.