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26
Components and Unit Settings
Section 2-1
0: OFF, 1: ON
Baud rate
Pins 9 and 10 are used to set the baud rate as shown in the following table.
Note
1.
Always turn OFF the MC Unit’s power supply (including the communica-
tions power supply) before changing the baud rate setting.
2.
Set the same baud rate on all of the nodes (master and slaves) in the Net-
work.
Other settings
Pin 7 is used to select the I/O Slave Messaging mode. This determines the
allocation of the I/O Slave Messaging mode area.
Pin 8 is not used.
■
General Switch Settings (MCW151-E only)
For the MCW151-E the external DIP switch can be used for general purpose.
The value of the switch can be accessed using the SWITCH_STATUS param-
eter.
DIP switch setting
Node address
Pin 6
Pin 5
Pin 4
Pin 3
Pin 2
Pin 1
0
0
0
0
0
0
0 (default)
0
0
0
0
0
1
1
0
0
0
0
1
0
2
...
...
1
1
1
1
0
1
61
1
1
1
1
1
0
62
1
1
1
1
1
1
63
Pin 10
Pin 9
Baud rate
OFF
OFF
125 kbps (default)
OFF
ON
250 kbps
ON
OFF
500 kbps
ON
ON
Not allowed
Pin 7
I/O Slave Messaging Mode
OFF
Mode I (default)
ON
Mode II
1
1 SW1
SW2
2
SW3
3
SW4
4
SW5
5
SW6
6
SW7
7
SW8
8
SW9
9
SW10
10
2
3
4
56
7
89
1
0
ON
ON