ZIEHL TMU104V, Operating Manual

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TMU104V 12560-0702-02 Page 18 / 19 www.ziehl.de
Appendix
14.1 Ziehl RS485 protocol
Transmission format: ASCII
Baud rat: 9600 (Default) 4800, 9600, 19200
Data: 8
Stop bit: 1 (Default) from firmware -02: adjustable 1, 2
Parity: even (Default) even, odd, no
1. Master requests data from TMU104V
Master sends <start><address of unit><read-command><mode><BCC><CR><LF>:
Start of message s (ASCII)
S (ASCII)
STX (0x2) 1 Byte
Address of unit 01 .. 99 (ASCII) 2 Byte
Read-command r (ASCII)
R (ASCII) 1 Byte
Data mode 0 .. 9 (ASCII) 1 Byte
Block check exor of all transmitted bytes 3 Byte
Carriage Return CR (0xd) 1 Byte
Line Feed LF (0xa) 1 Byte
10 Byte
2. TMU104V sends the requested data
TMU104V sends <start><Type of unit><address of unit><mode><data><BCC><CR><LF>:
Start of message s (ASCII) (Start-sign same as start sign at data request)
S (ASCII)
STX (0x2) 1 Byte
Data:
Type of unit TMU104V (ASCII) 7 Byte (+ separated by ";")
Address of unit 00 .. 99 (ASCII) 2 Byte (+ separated by ";")
Mode of data 0 .. 9 (ASCII) 1 Byte (+ separated by ";")
Sensor value -199,9 .. +850,0 (ASCII) *1 6 Byte (+ separated by ";")
Internal error 00 .. 99 (ASCII) 2 Byte (+ separated by ";")
Block check exor of all transmitted bytes 3 Byte
Carriage Return CR (0xd) 1 Byte
Line Feed LF (0xa) 1 Byte
29 Byte
With default-address of unit "0", the TMU104V transmits a complete set of data every 3s (start-
sign <STX>)
*1 Sensor short circuit, data "-999,9"
Sensor interruption, data "+999,9"