ELPRO 115S-11 Quick Setup Manual

inst_115S_1.13.vsd
THIS EQUIPMENT IS SUITABLE FOR USE IN CLASS 1 DIVISION 2 GROUPS A,B,C AND D, OR NONHAZARDOUS LOCATIONS ONLY.

Connection to Modbus Master

ADDRESSING

Set a unique Modbus slave address for each 115S
x10 x1
connected to the Modbus Master
Example shows address "01"
Consult user manual for Modbus addresses

POWER

Power
Modbus
115S
Supply
Master
+ -
Power
Modbus
Modbus
Earth Earth
Earth
EARTH wiring minimum 2mm² - 14 AWG
Ensure all earth connections are at the same potential.

RS485

Up = terminated
Down = un-terminated
RS485
termination
switch
Modbus
Master
RS485 Termination
A
B
switch up (terminated)
or
120Ω Fitted across
RS485
WARNING ‐ EXPLOSION HAZARD ‐ DO NOT DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS LIVE OR UNLESS THE AREA IS KNOW TO BE FREE OF IGNITABLE CONCENTRATIONS.
WARNING ‐ EXPLOSION HAZARD ‐ SUBSTITUTION OF ANY COMPONENT MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
115S Quick Setup Guide - Connections
B A
115S 115S
Power Connections:
'+' : Pos Supply
(10.8 to 30 VDC**)
'-' : Neg Supply
115S-11: 300mA max
Power
Power
115S-12: 900mA max
115S-13: 900mA max
Modbus
**Check rear label for
Earth Earth
operating voltages
- +
B A
A, B: Connect RS485
(Modbus)
ON
Power and
Modbus
connector
115S 115S 115S
A B A B A B
ADDRESSING
x1
x10
- + POWER
Power
Supply
-
+
Supply
_
+
Earth
Battery
EARTH wiring minimum 2mm² - 14 AWG
Ensure all earth connections are at the same potential.
RS485
Up = terminated
Down = un-terminated
RS485
RS485
Termination
Termination
switch up
switch up
(terminated)
(terminated)

Connection to E-Series Radio

Address switches must be 00 for E-Series protocol
Example shows address "00"
Setup using ELPRO E-Series configuration utility.
E-Series
115S 115S 115S
Radio
RS485
RS485
RS485
Power Power Power
Earth
Earth
Earth Earth
- +
B A
ON
Power and
RS485
RS485
Termination
connector
switch
E-Series
115S 115S
Module
A B A B
A B
© ELPRO Technologies.
- +
B A
Power Connections:
'+' : Pos Supply
(10.8 to 30 VDC**)
'-' : Neg Supply
115S-11: 300mA max
115S-12: 900mA max
115S-13: 900mA max
**Check rear label for
operating voltages
A, B: Connect RS485
(Elpro)
RS485
115S
Termination
switch up
(terminated)
A B