Owner's Manual
ZEN-RIO-MAN-15V02 (1009) Copyright © 2015 De ne Instruments
9
Control Inputs 1-16
The 16 digital control inputs on the ZEN-RIO are intended for use with SCADA sys-
tems or various plugins supplied by De ne Instruments. Without a plugin they do
not have any associated control functions on their own.
The status of the 16 digital control inputs can be read from any of the ZEN-16's se-
rial ports when set to Modbus RTU slave mode (factory default). They can either be
read as a 16 bit value from the Modbus Input register #4103 (4102 for direct address-
ing), or as Modbus discrete status inputs from input #113 to 128 (112–127 for direct
addressing).
The table below shows the functions of various bit ags:
Control
Input #
Register
4103 Bit #
Discrete
Input #
CI_1 0 113
CI_2 1 114
CI_3 2 115
CI_4 3 116
CI_5 4 117
CI_6 5 118
CI_7 6 119
CI_8 7 120
Control
Input #
Register
4103 Bit #
Discrete
Input #
CI_9 8 121
CI_10 9 122
CI_11 10 123
CI_12 11 124
CI_13 12 125
CI_14 13 126
CI_15 14 127
CI_16 15 128