BG 5195 BEN / A (2011-05) TPG261.oi
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5 Communication (Serial Interface)
The serial interface is used for communication between
the TPG 26x
1)
and a computer. A terminal can be con-
nected for test purposes.
When the TPG 26x is put into operation, it starts trans-
mitting measured values in intervals of 1 s. As soon as
the first character is transferred to the TPG 26x, the
automatic transmission of measured values stops. After
the necessary inquiries or parameter modifications have
been made, the transmission of measured values can be
started again with the
COM
command (
→
72).
Pin assignment of the 9-pin D-Sub connector and RS232
interface cable
→
23.
The data transmission is bi-directional, i.e. data and
control commands can be transmitted in either direction.
1 start bit
8 data bits
No parity bit
1 stop bit
No hardware handshake
1)
Communication structure and procedures are identi-
cal for both controllers TPG 261 and TPG 262.
Therefore the term TPG 26x is used in this chapter.
5.1 RS232C Interface
Connection diagram
connection cable
5.1.1 Data
Transmission
Data format
