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aecd9d6ae7 They start at 4 ma, so that you know the circuit is on. 577013-858.pdf 577013-858 TCP/IP DIM Installation Guide . 577013-339.pdf 577013-339 Schlumberger Dispenser Interface Module Installation Manual . Without the full specs I can only guess what you are actually trying to do and maybe be of more help. TokheimDispensingSystems.pdf POS Guide Notes Tokheim Dispensing Systems . WayneIDPOSTCPIPDIM.pdf Wayne IDPOS TCPIP DIM (TDIM) . #17 Like Reply Sep 18, 2014 #18 BR-549 Well-Known Member Sep 22, 2013 1,298 209 I'm not really familiar with that apparatus. I think the comunication are simplex, some body can help me? to convert the 4-20mA to TTL, but TX -RX system #1 Like Reply Sep 18, 2014 #2 MaxHeadRoom AAC Fanatic! Jul 18, 2013 8,991 1,871 What do you need, 4-20ma to TTL or the RX/TX part? or both? Max.
The micro-controller and pumps must be compatible. I thought it was so because it is the most discussed in the industry. Only the addressed terminal (pump) should response and the rest of the terminals should ignore the data. Usually this current is put thru an appropriate resistor to give you the desired voltage swing for a adc. GilbarcoStoremaster.pdf POS Guide Notes StoremasterAutoGas Storemaster and Gilbarco Dispenser Systems . The range is 4 to 20 ma. Only the addressed terminal (pump) should response and the rest of the terminals should ignore the data. I have the protocol but i dont know how is the circuit to make the interface with my microcontroler. There are lots of resources on the web on proper use of 4-20 mA loops.