E-T-A ControlPlex EM12D-TIO, User Manual

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9.3.5 Load voltage and load current channel for 32 channels
When reading the index 401– 432, four bytes each are returned.
Byte [1] - byte [2] contain the load voltage of the channel.
value range:
0 – 65535
data length: 1 word (unsigned integer)
The load current is made available as a standardised 16-bit-value with a solution of 10 mA.
Example: measuring value operating voltage = 2512
-> real measuring value = 25.12 Volt.
9.3.6 Extended diagnostic messages (dynamic info) channel for 32 channels
When reading the index 501– 532, three bytes each are returned.
fig. 47: Load voltage channel
byte[1] (LOW) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
description 128 64 32 16 8 4 2 1
value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
byte[2] (HIGH) bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8
description 32768 16384 8192 4096 2048 1024 512 256
value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
Byte [3] - byte [4] contain the load voltage of the channel.
value range:
0 – 65535
data length: 1 word (unsigned integer)
fig 48: Load current channel
byte[3] (LOW) bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
description 128 64 32 16 8 4 2 1
value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
byte[4] (HIGH) bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8
description 32768 16384 8192 4096 2048 1024 512 256
value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
The load voltage is made available as a standardised 16-bit-value with a solution of 10 mV.
Example: measuring value operating voltage = 2512
-> real measuring value = 25.12 Volt.