QUESTION:
Where can I get information about ordering and using cables for the S7-400 interface modules (IM 46x)?

ANSWER:
The following table shows the standard cable lengths (in order of length):

Cable length (in meters)	Description	MLFB
0.75	SIMATIC S7-400, IM cable with K bus	6ES7 468-1AH50-0AA0
0.75	SIMATIC S7-400, IM cable with SV bus without K bus	6ES7 468-3AH50-0AA0
1.5	SIMATIC S7-400, IM cable with K bus	6ES7 468-1BB50-0AA0
1.5	SIMATIC S7-400, IM cable with SV bus without K bus	6ES7 468-3BB50-0AA0
5	SIMATIC S7-400, IM cable with K bus	6ES7 468-1BF00-0AA0
10	SIMATIC S7-400, IM cable with K bus	6ES7 468-1CB00-0AA0
25	SIMATIC S7-400, IM cable with K bus	6ES7 468-1CC50-0AA0
50	SIMATIC S7-400, IM cable with K bus	6ES7 468-1CF00-0AA0
100	SIMATIC S7-400, IM cable with K bus	6ES7 468-1DB00-0AA0
250	SIMATIC S7-400, IM cable	6ES7 468-1DC50-0AA0
450	SIMATIC S7-400, IM cable	6ES7 468-1DE50-0AA0
600	SIMATIC S7-400, IM cable	6ES7 468-1DG00-0AA0

Table 1: Overview of standard cable lengths

Please note the following when ordering special cable lengths for the S7-400 interface modules:

• Order number / MLFB
  Length code for connecting cables with MLFB No.: 6ES7 468-1XYZ0-0AA0

Notes on the letters X, Y and Z in the order number / MLFB:

Characteristics of "X":

Code letter	Unit of measurement	Range		Grading	Tolerance
		Number	Length
B	cm	100 - 990	100cm - 990cm	10 cm	+30cm
C	dm	100 - 990	100dm - 990dm	10 dm	+0.5m
D	m	100 - 600	100m - 600m	10 m	+1m

Table 2: Characteristics of "X"

Characteristics of "Y":

Code letter	A	B	C	D	E	F	G	H	J	K
Number	-	1	2	3	4	5	6	7	8	9

Table 3: Characteristics of "Y"

Characteristics of "Z":

For the letter "Z" in order number / MLFB please specify a number from 0 to 9 for the special length of your cable.

Examples:
MLFB No.: 6ES7468-1BJ60-0AA0 calculation for 860cm cable: B:100cm, J:8 -> 100cm * 8 + 60
MLFB No.: 6ES7468-1CE90-0AA0 calculation for 490dm cable: C:100dm, E:4 -> 100dm * 4 + 90
MLFB No. 6ES7468-1DB50-0AA0 calculation for 150m cable: D:100m, B:1 -> 100m * 1 + 50

• Costs:
  A surcharge of 10% on the cable price will be levied for cable lengths of 150m and more. A processing charge of EUR 60 per order item will also levied.
• Delivery times:
  For special cable lengths: up to 14 weeks

Cables in special lengths that are not in the standard program, can be ordered separately. Please get in touch with your regional SIMATIC sales representative for this.

Note for SIMATIC sales staff:
More information is available in Entry ID 7831922.

Important:
Joining two or more cables together is not permitted. The functioning of the connection can in such cases no longer be ensured because of the reflections produced.

Keywords:
Hardware compatibility, System accessories, IM, Cable, Extension device