M880
Relay Action
Read/Write
The M880 relay’s action
(energise or de-energise) at pulse time can be written/read using the table
below.
The format
is a one-byte bit pattern, where each bit is mapped to one physical relay,
(bit 0 = Relay 1)
At pulse time, if a bit is reset (0), the corresponding relay’s function
is to energise, if set (1) it will de-energise.
Example:
By default, the relay corresponds to bit position 0. The rest
of the bits (1 - 7) in the actions byte are ignored.
| Relay (1 only) | x | x | x | x | x | x | x | 1 |
| Bit No. | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Action Byte | x | x | x | x | x | x | x | 1 / 0 |
| Action On Exceptions | x | x | x | x | x | x | x | Energise/de-Energise |