Siemens S7-400 ユーザーズマニュアル

13-12

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

The IF 962-COM interface submodule can be addressed in the following two ways:

•

In the AT-compatible I/O address area

•

In the M7-300/400-reserved I/O address area (from C000

H

).

The COM ports can be operated in the AT-compatible I/O address area. The
settings are made in the BIOS Setup. You can see the addresses that can be set in
the BIOS Setup from the following table.

Table 13-9

Addressing the COM Ports in the AT-Compatible Address Area

03F8

H

 to 03FF

H

*)

02F8

H

 to 02FF

H

*)

03E8

H

 to 03EF

H

Automatically configured by the BIOS and

02E8

H

 to 02EF

H

Automatically configured by the BIOS and
can be set in the BIOS setup.

–

0380

H

 to 0387

H

–

0280

H

 to 0287

H

*) The BIOS searches the addresses in the order 03F8

H

, 02F8

H

, 03E8

H

 and 02E8

H

 and

assigns COM1, COM2, COM3 and COM4 in ascending order. There is no fixed
assignment of the I/O addresses to COMx. For example, if only one COM port is detected
at address 12E8

H

, this will be COM1.

In the following example, the I/O addresses 03F8

H

 (COM1) for COMa and 02F8

H

(COM2) for COMb are to be set in the BIOS setup. Proceed as follows to do this:

1. Select the “IF Modules” page in the BIOS setup.

2. Enter the submodule receptacle number of the interface submodule in “Select

Module #”.

3. Enter the offset address for the configuration register of the interface submodule

“00

H

” at “Config.Index”

.

4. Enter “36

H

” at “Value”. This value is then written into the configuration register

(see also Table 13-13).

5. Press the OK button.