GAI-Tronics MI05-101 Merge / Isolate Cabinet with External Option - Manual (Page 6)

Pub. MI05-101iom.2
Model MI05-101 Merge/Isolate Cabinet Page: 6 of 24
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01/09
Master I/O Controller Switch Settings
The Master I/O Controller contains two hex switches labeled ADDRESS ID on the cover. Refer to
Figure 3. These switches must be set to identify the number of master stations in the system. This
setting is critical to ensure the Master I/O Controller recognizes the commands from all the master
stations. Up to eight master stations can be parallel-connected to the M/I cabinet.
Switches S1 and S2 are used to set the number of master stations in the system. The switch setting is
read as a hexadecimal number. Switch S1 is the LO address and switch S2 is HI address.
Switch Setting Examples
Switch
S2
Switch
S1
Number of
Master Stations
0 1 1
0 2 2
0 3 3
0 4 4
0 5 5
0 6 6
0 7 7
0 8 8
N OTE : The switch setting is recognized only when either the Master I/O Controller is powered up, or
when the R ESET button is pressed. Momentarily press the R ESET button each time a switch is changed.
The R ESET button located next to the ADDRRESS ID switches.
DIP Switch Settings
The Master I/O controller switch S4 is an 8-position DIP switch that is used to set the data baud rate.
This switch is factory set and should not be changed. To access the DIP switch, the cover must be
removed from the I/O controller. If replacing the Master I/O controller, be sure to set the switch as
follows:
Switch Position Open/Close Switch Position Open/Close
S4-1 Open S4-5 Open
S4-2 Open S4-6 Open
S4-3 Open S4-7 Open
S4-4 Open S4-8 Close
Press the R ESET
switch following any switch changes.
Jumper Clip Settings
The Master I/O controller has two jumper clips, J6 and J7, which determine the data connection and
operating mode of the module, as follows: