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1.4
Connecting a Power Cable
The TD 200 receives power either from the S7-200 CPU or from an external plug-in power
supply unit.
Note
If you are using the TD 200 with a network of S7-200 CPUs, special consideration must be
taken with the communication and power connections. See Appendix B.
Supplying Power from the S7-200 CPU
Figure 1-6 shows you the TD 200 receiving its power from the CPU through the TD/CPU
cable. Use this type of power supply when the distance between the TD 200 and the S7-200
CPU is less than 2.5 m (8.2 ft.).
TD 200
Figure 1-6
Supplying Power with the TD/CPU Cable
Supplying Power from an External Power Supply
Figure 1-7 shows the TD 200 receiving its power from an external power supply. Use this
type of power supply when the distance between the TD 200 and the S7-200 CPU is greater
than 2.5 m (8.2 ft.). If you choose to connect the TD 200 to the CPU with a longer cable
( 2.5 m/8.2 ft.), use PROFIBUS components (see the SINEC IK10 Catalog). The power
supply is available from your Siemens distributor. See Appendix A for part numbers.
Figure 1-7
Supplying Power Using an External Power Supply
SIMATIC TD 200 Operator Interface
C79000-G7076-C205-04
SIEMENS
TD 200
TD/CPU Cable
TD 200
SIEMENS
TD 200
Product Overview and Installation
S7-200 CPU
SIMATIC
S7-200
To CPU
AC
1-7
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