看手册，就是C语言，据说还有个M7系列的PLC不在国内销售个

Supplementary Software

? Borland C++ (M7 only) contains the Borland development environment.

? With DOCPRO you can organize all configuration data created under STEP 7 into wiring

manuals. These wiring manuals make it easy to manage the configuration data and allow the

information to be prepared for printing according to specific standards.

? HARDPRO is the hardware configuration system for S7-300 with user support for large-scale

configuration of complex automation tasks.

? M7 ProC/C++ (M7 only) allows integration of the Borland development environment for the

programming languages C and C++ into the STEP 7 development environment.

? You can use S7 PLCSIM (S7 only) to simulate S7 programmable controllers connected to the

programming device or PC for purposes of testing.

? S7 PDIAG (S7 only) allows standardized configuration of process diagnostics for SIMATIC

S7-300/S7-400. Process diagnostics let you detect faults and faulty states of PLC I/O (for

example, limit switch not reached).

? TeleService is a solution providing functions for online programming and servicing of remote

S7 and M7 PLCs via the telecommunications network with your PG/PC.