Hi,

We have a S5 90U, which appears to have lost it's program. PLC was found in stop mode, has been returned to run mode, inputs are on but outputs are off. This is one of 10 PLC's and all the others (same function different HRSG's) have the outputs energised. We are attempting to upload from one of the healthy PLC's (as we don't have a back up!) and then download this to the suspect one. The equipment we have is very old and we have little experience of it.

Software is S5/ST version 6.5 (dos based) on a PC

We have obtained two cables one is 6ES5734-1BD20, the other is 6ES5734-2BF00.

We are trying to connect to a S5-90U – 6ES5 090-8MA01

Are either of these the correct cables?

The prommer is set to External Prommer with parrallel port - LPT1

When opening Step 5 we get the following messages;

STEP 5 LPT-Prommer EPROM-DRIVER V4.07
EPROM TSR at LPT1: Please check PROMMER Port, Cable and Power !
ERPROM TSR was not installed !
Error by loading EPROM driver
Press any key to continue . . .

The software then opens, but it appears that we have no connection. This being based on settings Page 2, selecting the mode (which states offline) and after this it states PC timeout.


Is this simply due to the cable we are using or could there be other issues?

Thanks

 

1. is the Step5 running on a pure-DOS machine? Otherwise you will need Step5 version v7.23 to have it running on a WinXP machine.

2. cable 6ES5734-2BF00 is for PG720, so it will not work on your PC.
Cable 6ES5734-1BD20 should do the job

3. as long as you do not need to read/write eprom modules, ignore the prommer messages

4. Step-5 tries to open COM1 by default. If you connected the cable to COM2 port, you must also select it in the interface options screen of the Step5 package (select something like "telecom 2 > 2400 baud")

5. is your COM port a true COM port or a PCMCIA card? An USB-RS232 adapter? Better to use an old 486 with true COM ports.

If nothing works, you can contact me at the email address you find at www.runmode.com ("about us" page).

Regards
Luca Gallina

 

Hi,

I think you should be using the 6ES5734-1BD20, which is the programming lead for a PC to PLC, and has the built in serial convertor. The other is for a Seimens PG programmer. Note that the cable is a 25 pin serial at the PC end.

It also seems you are trying to use the 'prommer', which is the EPROM
programmer and is a parallel port device. Check the coms setting on page 2 is set to COM1 and that the interface is AS511, then try going online.

Cheers,
Trevor.