Siemens — Protocol

Communications The BW100 bipolar current loop provides long distance communication to a customer device. Operation BW100 host device Bipolar Converter The BW100 communication port (TB1-21 to 25) is software set for baud (P751) and mode enable (P760). Refer to Installation/Communication on page 14 for wiring details. Note: If communicating via Milltronics Dolphin software, the baud rate must be set to 4800. Protocol Protocol refers to the format, sequence and value of the data fields used in communication messages. Each data field of a BW100 message contains one or more bytes of ASCII binary code. Each byte contains:

+ 20 mA s t a r t 1 s t 7 t h 8 t h s t o p » 8 data bits » no parity bit » 1 stop bit 0 – 20 mA 7ML19985DJ01 Milltronics BW100 - INSTRUCTION MANUAL Page 47 2 n d 3 r d 4 t h 5 t h 6 t h