What are the port numbers which have to be used on Step7 depending of the communication modules?

The port numbers which have to be used on Step7 depends on the used communication module and on the place where the module is plugged in to the PCD.

General rule for the port number:

PCD	Socket for comm. module PCD1, PCD2	PCD E/A slot for PCD1.M2 PCD2.M5 and PCD3 CPU's	Port Nr. xx7 PCD	Port Nr. Classic PCD
PCD1.M1	A B B		1 2 3	1 2 3
PCD1.M2	(38-39) A	Slot 0 PCD2.F2xx Slot 0 PCD2.F2xx Slot 1 PCD2.F2xx Slot 1 PCD2.F2xx	0 1 3 4 5 6	0 1 100 101 110 111
PCD2.M127/ PCD2.M157	A B B		1 2 3	1 2 3
PCD2.M177	A B1 B1 B2 B2		1 2 3 4 5	1 2 3 4 5
PCD2.M487	PGU A B1 B1 B2 B2 (27-29)		0 1 2 3 4 5 6	0 1 2 3 4 5 6
PCD2.M5xx7	PGU A1 A2	Slot 0 PCD2.F2xx Slot 0 PCD2.F2xx Slot 1 PCD2.F2xx Slot 1 PCD2.F2xx Slot 2 PCD2.F2xx Slot 2 PCD2.F2xx Slot 3 PCD2.F2xx Slot 3 PCD2.F2xx	0 1 2 3 4 5 6 7 8 9 10	0 1 2 100 101 110 111 120 121 130 131
PCD3.Mxxx7	PGU D D/	Slot 0 PCD3.F1xx Slot 0 PCD3.F2xx Slot 0 PCD3.F2xx Slot 1 PCD3.F2xx Slot 1 PCD3.F2xx Slot 2 PCD3.F2xx Slot 2 PCD3.F2xx Slot 3 PCD3.F2xx Slot 3 PCD3.F2xx	0 1 2 3 4 5 6 7 8 9 10	0 1 2 100 101 110 111 120 121 130 131