1MRS755014
SPA-ZC 302
17
Profibus-DPV1/SPA Gateway
Installation and Commissioning
The pin numbers of the RS-485/Profibus DP version 1 bus connection are presented
in Table 3.3.2.1-1.
3.3.2.2. Address selectors
The addressing of the device can be done in two ways:
• The first and easiest way is to select the slave address using the rotary switches
that are located in front of the device, see Fig. 3.3.2.2.-1. Using this method, the
addresses 0-99 can be selected.
• If the rotary switches are set to address 0 (zero), the slave address can be set by
using the Profibus Configuration Tool (PCT), see Section 5.2. Starting PCT.
A050339
Fig. 3.3.2.2.-1 Address selectors in SPA-ZC 302
If no address is set, use the default address 125. Changing of the Profibus address
requires reboot of the gateway, that is through power off/on, or by changing to
application mode from the configuration mode using the A1 DIP switch, see Section
3.3.3.3. DIP switch configuration.
Table 3.3.2.1-1 Profibus DP version 1 connector
Pin Usage
Housing Shield, connected to Power earth
1 Not connected
2 Not connected
3 B-line, Positive RxD/TxD according to RS-485 specification
4 RTS, Request to send
5 GND BUS, Isolated GND form RS-485 side
6 +5V BUS, Isolated +5V from RS-485 side
7 Not connected
8 A-line, Negative RxD/TxD according to RS-485 specification
9 Not connected
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