Siemens 611-D, 840C 3.2 PG function via MMC

09.95

SINUMERIK 840C (IA)

PG interface

Only the following values are permissible for the PG inter-

face on the PLC 135 WD:

9600 BAUD

PARITY EVEN

2 STOP BITS

The PG interface is always active.

PG operation

Step Activity

1Connect cable NC-PG

2PG 7xx Start S5-DOS

3PG 7xx Select on-line mode

3.2 PG function via MMC

The function exists on SW 4 and higher and can be ob-

tained as an option. It is mainly for servicing, testing and

commissioning.

General notes With this function you can use the functionality of the SIMATIC software STEP

5/MT level 6 on the SINUMERIK 840C control. PG functions can thus be

executed on the operating panel or on an MF2 keyboard. Operation via the opera-

tor panel or MF2 keyboard is restricted compared with operation on the program-

mer.

For the connection between the MMC and the PLC (on-line operation), the follow-

ing cable is required:

MMC-CPU, X151 <–––– 6FC9340–8W –––> PLC CPU, X111

(see INTERFACE DESCRIPTION PART 2 CONNECTION CONDITIONS).

The PG function via MMC is mainly used for:

Support in servicing, testing, installation and start-up with the following

functions:

SStatus module

SStatus variable

SForce PLC

SPLC info with BSTACK and USTACK and

SCross-reference lists

Moreover, modules can be edited and loaded/stored from/to diskette (floppy FD–

E2).

A programming device (e.g. PG 750) is still required to write large PLC user pro-

grams because operation is restricted.

3 PLC Installation

3.1 General remarks