Rice Lake 920i Programmable HMI Indicator/Controller - Profibus DP Interface - Manual (Page 7)

Installation 3
.
Figure 2-4. 820i and 920i enclosure backplate
9. Ensure no excess cable is left inside the
enclosure and tighten cord grips.
10. Reconnect power to the indicator. The
i n d i c a t o r a u t o m a t i c a l l y r e c o g n i z e s a l l
installed option cards when the unit is
p o w e r e d o n . N o h a r d w a r e - s p e c i f i c
configuration is required to identify the
newly-installed Profibus DP Interface to the
system.
Figure 2-5. Bus Adapter Card and Profibus Module
2.2 Profibus Network Connections
Connections to the Profibus network are made at
connector on the Profibus module (see Figure 2-5).
Feed Profibus network cable through cord grip. Allow
enough cable for routing along inside of enclosure to
connector on the Profibus module. Connect network
cables to connector on the Profibus module, then use
cable ties to secure network cables to the cable tie
mounts.
Table 2-1 describes each of the connector pins. +5V
and GND pins are used for bus termination. Some
devices, including optical transceivers, may require
connection to these pins. The RTS line is used in some
equipment to determine direction of transmission.
Most applications use only the A-LINE, B-LINE, and
SHIELD connections.
Baud Rate
The baud rate is set during configuration of the master
and is automatically detected by the Profibus
Interface. Baud rates supported include: 9.6K, 19.2K,
45.45K, 93.75K, 187.5K, 500K, 1.5M, 3M, 6M or
12Mbps.
1
3
5
14
17
16 12
9
8
7
10
11
18
15
4
2
6
13
T o r q u e b a c k p l a t e s c r e w s
t o 1 5 i n - l b ( 1 . 7 N - m )
J2
TEST
3.3V
GND
J1
+5V
B-LINE
GND
A-LINE
RT
SHIELD
x10
x1
Profibus
Module
LED
Indicators
Address
Switches
Termination
Switch
Signal Description
+5V +5V, isolated from RS-485 side
GND Ground, isolated from RS-485 side
A-LINE Negative RS-485 RxD/TxD
B-LINE Positive RS-485 RxD/TxD
SHIELD Bus cable shield
RTS Request to send
Table 2-1. Profibus Network Connections