Rockwell Automation 1395 Multi-Comm Hardware/Software - Manual (Page 79)

Chapter 4
Installation
4–4
IMPORTANT: The switch settings are read by the Drive when it is
powered up and/or when a “System Reset” is performed. If changes are
made to the switch settings after one of these occurances they will not take
effect until the next power-up or “System Reset” is performed. Any illegal
DIP switch settings or combinations is annunciated with a fault. When
setting up the MCA board the following steps should be taken:
1. Determine what link protocol (RIO, DH+, or none) will be used for each
channel.
2. Determine what baud rate will be used for each channel.
3. Record these selections in Table 4–B and continue with the installation.
Protocol
Channel A
Table 4-B. Link Protocol and Baud Rate Selection
Baud Rate
Channel B
Protocol selection (Switch U5 channel A, and U14 channel B):
Switch positions 1–3 determine which link protocol will be used by each
channel. Refer to Table 4–C for details.
Protocol
None
Table 4-C. Switch settings for link protocol (U5 and U14)
Remote I/O (RIO)
Switch Positions
0
0
Data Highway + (DH+)
1 2 3
0
0
0
1
0
1
0
Baud Rate selection (switch U5 channel A, and U14 channel B):
Switch positions 4 and 5 determine which baud rate will be used by each
channel. Refer to Table 4–D baud rate settings for details. The baud rate
must be the same for all devices connected to a specific channel. For
example, if channel A is configured for 57.6k baud, then all devices
connected to this channel must be configured for 57.6K baud.
Baud Rate
57.6K
Table 4-D. Switch settings for baud rate (U5 and U14)
115 K
Switch Positions
0
0
230K
4 5
1
0
1
0
The next sections are specific to the link protocol selected.