SIEMENS SINUMERIK System 800 General Interface Technology Explanation and Configuration Guide

2. Tape reader (such as SINUMERIK T40/T50)

Interface: V.24

Set data: device code 00H, baud rate 9600, 2 stop bits

Cable: 6FC9 340-8S

3. Disk drives (such as Siemens DSG 3.5)

Interface: V.24

Set data: device code 00H, baud rate 9600, 2 stop bits, Xon/Xoff control

Cable: 6FC9 344-2P

4. Programming workstation (such as SINUMERIK WS800)

Interface: V.24 or 20mA

Set data: device code 00H, baud rate 9600, 2 stop bits

Cable: 6FC9 344-1B (V.24) or 6FC9 344-1Q (20mA)

5. PLC programmer (such as SIMATIC PG 675/750)

Interface: 20mA or V.24

Set data: device code 04H, baud rate 9600, 2 stop bits, even parity check

Cable: 6FC9 340-8G (20mA) or 6FC9 344-4R (V.24)

Configuration precautions

Level and current cannot be mixed: V.24 transmitters and 20mA transmitters on the same interface must not be connected simultaneously.

DTE/DCE docking: If the peripheral device is also a DTE, the transmission and reception lines need to be crossed in the cable.

Cable length limit: V.24 does not exceed 30 meters, 20mA and RS422 can reach 1 kilometer.

Code conversion note: EIA code is missing some ISO characters, and alternative codes need to be defined in the settings data, otherwise it may cause read and write inconsistencies.

Time monitoring: By default, a 60 second timeout interrupt is enabled, which can be disabled by setting data.