Unit installation

BMB01 – Installation Guide
3. Set the Address Switch to the correct number between 1 and 9; see Figure 3.
Figure 3 Address Switch and link locations and settings
ADDRESS SWITCH COMMS LED
PROCESSOR HEALTH
LED
EXAMPLE: ADDRESS SWITCH SET TO 1
Address 0 is not used.
VAR Routers can only use addresses 1 to 6.
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LK3
TERMINATOR LINK
LK4
INTERNAL PULL-UP
ENABLE (1-4)
LK5
INTERNAL PULL-UP
ENABLE (5-8)
LINK FITTED
LINK OPEN
LINK SETTINGS:
4. If the unit is the last (or only) Remote I/O Unit on the RS485 bus, then fit the Terminator Link (LK3)
over both pins; see
Figure 3.
5. Set the pull-up links (LK4, LK5) as required; see
Figure 3.
LK4: fit link to enable internal pull-ups on the anodes of the opto-isolators for Digital Inputs 1 to 4.
LK5: fit link to enable internal pull-ups on the anodes of the opto-isolators for Digital Inputs 5 to 8.
6. Replace the BMB01 lid, ensuring that it is the correct way round.
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The lid on the BMB01 is designed to attach one way only. For this reason the clips on either side
are of different sizes. When re-attaching the lid, ensure that both clips fit their corresponding
hole either side of the lid.
7. Clip the BMB01 onto the DIN rail by positioning the top of the BMB01’s rear DIN rail mount on the DIN
rail and then pivoting the unit downwards and backwards until the spring loaded clip has fastened;
see
Figure 4.
Issue: 02 Complete, Approved
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