6-2
Connecting TM I/O to PCS 7
C79000-G8076-C710-04
6.1 Product overview
6.1.1 Use of the migration rack on PCS7/TM
Migration rack II is a preassembled module rack equipped with an integra-
ted SIMATIC S7/M7-400 backplane bus, with the dimensions of the panel-
mount system ES 902. It is absolutely required for operation of a PCS7/TM
system in a TELEPERM M cabinet.
All system components can be operated on the slots of the short backplane
PCB, e.g the DC power supply, CPU, FM456-4 and I/O bus interface.
Migration rack II also provides five slots for TELEPERM M I/O modules
taken from an AS 220 S-/AS 235 basic unit. These five I/O slots can be freely
assigned to I/O bus A and B.
For the PCS7/TM system, migration carrier II provides five TELEPERM M
I/O slots for TELEPERM M I/O modules taken from an AS 220 S-/AS 235
basic cabinet. All these slots can be operated on I/O bus A or in a 3 : 2 ratio
on I/O bus A and B.
Another feature is the simplified wiring (supply and process control messa-
ges) and the possibility of replacing certain mechanical components (connec-
tors) in case of error.
The wiring features no loose ends, that is, the installation technique is adap-
ted to AS 230/235.
The integrated backplane also provides distribution of specific signals and
voltages. Same as in AS 235, the 24-V supply lines are terminated on press-
fit nuts with hex bolts. The 5-V supply of the I/O bus is integrated in the
backplane, the wiring can be distributed from there. Process control monito-
ring signals are now terminated on the backplane terminal blocks - same as in
the AS 235. The existing cabinet wiring can be used almost completely.
The front panel-mount fuses for L+ (16A) and PM (4A) can be replaced from
the front in case of error. Due to the fastening mechanism on the side, the I/O
bus connectors can be replaced in case of error without having to remove the
migration rack.
The migration rack is equipped with by-pass capacitors for the L+, PM, M24
and MZ voltages for the derivation of electrical disturbance to the shielding
and, thus to the metal case.
All position addresses of the slots are equipped with filters.
What is
migration rack II?
Features
Mi
ration rack II
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