Original poster even gave a quick reply update... So bye byeWith RS-422 four wire you can only connect 2 devices to each other. So there is never a need to set an address - you always know whom you are talking to (= the other).
Now it could be that the vendor says "RS-422 four wire" but actually means: RS-485 four wire. In this case, the device being the master also doesn't need an address. Like in Modbus.
BTW, with RS-485 the normal max device limit per cable segment is 32. You need repeaters to reach 88.
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