User Manual
Table Of Contents
- SIMATIC ITP1000
- Warning notice system
- Preface
- Table of contents
- 1 Overview
- 2 Safety notes
- 3 Commissioning the device
- 4 Devise functions and operating the device
- 5 Device maintenance and repair
- 6 Technical specifications
- A Technical Support
- B Labels and symbols
- C Abbreviations
- Index
Technical specifications
6.4 External interfaces
SIMATIC ITP1000
74 Operating Instructions, 01/2017, A5E37340160-AA
6.4.4
RS232 (COM1)
Pin no.
Short description
Meaning
Input / output
1
DCD
Data carrier detect
Input
2
RxD
Received data
Input
3
TxD
Transmit data
Output
4
DTR
Data terminal ready
Output
5
GND
Ground
-
6
DSR
Ready for operation
Input
7
RTS
Request to send
Output
8
CTS
Clear to send
Input
9
RI
Incoming call
Input