Installation and Commissioning
8-18 7SA522 Manual
C53000-G1176-C119-2
o Only for devices with serial rear interfaces:
Communication modules are situated on the processor module CPU and secured to
the rear plate of the device housing (slots “B” to “E”). Alternatively RS 232, RS 485 or
Profibus modules are available. The jumper settings for the alternatives RS 232 or RS
485 (see Figure 8-11) are derived from Table 8-7:
The jumpers are set at the factory based on the configuration ordered.
If a RS 485 interface (Figure 8-11) or Profibus interface (Figure 8-12) is provided, the
bus must be terminated with resistors on the last device at the bus. On delivery the
presetting of the jumpers is such that the terminating resistors are disconnected. Both
jumpers X3 and X4 on a particular module must always be set the same.
Figure 8-11 Location of the Jumpers for Configuring the Terminating Resistors of the Inter-
face on Card Version C53207-A324-B180
The Profibus interface has to two jumpers X3 and X4, as shown in Figure 8-12.
Table 8-7 Configuration of Jumpers for RS 232 or RS 485 on the Interface Card (Circuit
Board Number C53207-A324-B180, Figure 8-11)
Jumper X5 X6 X7 X8 X10 X11 X12 X13
RS 232 1–2 1–2 1–2 1–2 1–2 2–3 1–2 1–2
RS 485 2–3 2–3 2–3 2–3 2–3 2–3 1–2 1–2
X3
132
X10
132
8X
1
3
2
X12
132
C53207-
A324-B180
1
3
2
X11
X6
X7
X4
X5
132
1
3
2
X13
Jumper
Terminating resistors
Connected Disconnected
X3 2-3 1-2*
)
X4 2-3 1-2*
)
*
)
Factory Set
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