Signal 9-pin 25-pin
Carrier Detect 1 8
Receive Data 2 3
Transmit Data 3 2
Data Terminal Ready 4 20
System Ground 5 7
Data Set Ready 6 6
Request to Send 7 4
Clear to Send 8 5
Ring Indicator 9 22
Hi,
I think your cable it is not good!!!
Your cable it is not a TTY cable: this cable is only for PG 7XX http://support.automation.siemens.com/W ... aller=view
Take care do not connect your serial COM to PLC, you will destroy it!!!
Best regards.
dehell is right this cable is not a tty cable. it is used only with pg7xx.
i think what indian post is the cable configuration to connect pg7xx with s5 cpu.
i guess i have to find a tty cable. thank you everybody.
I also had problem with step 5 software when I used converter USB ---> RS232 9pin ---> RS232 25pin ---> TTY ---> PLC S5
but software PG2000 it working with same converter
Try PG2000
Best regards.