20
eloProg - Vers. 1.0
SIGNALS
INPUTS
MASTER ENABLE
The eloProg 485EPB master has two inputs: MASTER_ENABLE1 and MASTER_ENABLE2.
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These signals must both be permanently set to logic level 1 (24VDC) for the eloProg to
operate. If the user needs to disable the eloProg simply lower these inputs to logic level 0
(0VDC).
NODE SEL
The NODE_SEL1 and NODE_SEL2 inputs (on the SLAVE units) are used to attribute a physical
address to the slave units with the connections shown in Table 10:
NODE_SEL1
NODE_SEL2
SLAVE 0
0 (or not connected)
0 (or not connected)
SLAVE 1
0 (or not connected)
24VDC
SLAVE 2
24VDC
0 (or not connected)
SLAVE 3
24VDC
24VDC
Table 10
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It is not allowed to use the same physical address on two units of the same type.
