CPUs for M7-400
11-16 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
11.4 The BIOS Setup

Overview

The BIOS setup handles the configuration of the relevant CPUs in your M7-400
system. The settings and technical information concerning the configuration of this
programmable module are displayed in the BIOS setup. The CPUs already have a
default setup. It is set in such a way that the minimal configuration of a CPU (with
memory card drive) will power up via BIOS setup without programming.
You can change the default settings in the BIOS setup. This becomes necessary if,
for example, you want to connect expansions to your CPU (expansion module with
interface submodules, mass storage module with diskette and hard disk drives, or
AT adapter module with short AT card). You must inform the operating system of
these expansions.
If you want to make settings in the BIOS setup, you can do so:
•Directly at the relevant module if your M7-400 is equipped with interface
submodules and I/O devices such as a monitor and keyboard (interface
submodule IF 962-VGA).
•Remote setup with a terminal program (for example, HyperTerminal under
Windows 95) on programming device/PC or with an ANSI terminal via the
COM1 port (interface submodule IF 962-COM).

Remote Setup

To run BIOS settings via the Remote Setup without the interface submodule
IF 962-VGA, follow the steps outlined below:
1. Switch off the line voltage to your M7-400.
2. Connect the programming device to the COM1 port of the SIMATIC M7 device
(see Section 8.7.2 of the Installation Manual).
3. On your programming device under Windows 95 select “Start > Accessories >
Hyperterminal”.
4. In the HyperTerminal window, select the menu command “File > New
Connection”. Enter a connection description and select the COM port with the
following transmission properties: 19000 bps, 8 data bits, no parity, 1 stop bit,
no flow control.
5. Switch on the line voltage to the M7-400 and hold the “Q” key pressed during
startup until the M7-400 registers itself in the HyperTerminal with the hardware
tests (a “U” appears).
6. Press the ESC button immediately.
Result: You are in the BIOS setup.