User Guide

Quick Start Guide
This guide is designed to help you set up and install the R90C 4-Port ModBus to Analog Hub. For complete information on programming,
performance, troubleshooting, dimensions, and accessories, please refer to the Instruction Manual at www.bannerengineering.com. Search for p/n
227463 to view the Instruction Manual. Use of this document assumes familiarity with pertinent industry standards and practices.
• Compact ModBus
®
to analog converter that generates a current or voltage output on
each of the four ports
• Rugged over-molded design meets IP65, IP67, and IP68
• Connects directly to a sensor or anywhere in-line for ease of use
• R90C ModBus hubs are a quick, easy, and economical way to integrate analog outputs
into a ModBus system
Overview
The R90C 4-Port ModBus to Analog Hub can output either 0 V to 10 V, or 4 mA to 20mA, to each of the four unique ports. Writing to the appropriate
ModBus RTU register allows the user to select the type of output - voltage or current - for each port.
Mechanical Installation
Install the R90C 4-Port ModBus to Analog Hub to allow access for functional checks, maintenance, and service or replacement.
All mounting hardware is supplied by the user. Fasteners must be of sufficient strength to guard against breakage. Use of permanent fasteners or
locking hardware is recommended to prevent the loosening or displacement of the device. The mounting hole (4.5 mm) in the R90C 4-Port ModBus
to Analog Hub accepts M4 (#8) hardware. See the figure below to help in determining the minimum screw length.
NUT
3 mm *
for minimum
engagement of
three threads
Screw Length = 16.0 mm + “X” mm + 3 mm
X
*
16.0 mm
CAUTION: Do not overtighten the R90C 4-Port ModBus to Analog Hub's mounting screw during installation. Overtightening
can affect the performance of the R90C 4-Port ModBus to Analog Hub.
Status Indicators
The R90C 4-Port ModBus to Analog Hub has matching amber LED indicators on both sides for each analog output port to allow for installation
needs and still provide adequate indication visibility.
Analog Output Amber LEDs
Indication Status
Off Turns off if the actual analog out value is outside the
defined output range
Solid Amber Turns on if the actual analog out value is within the
defined output range
Power and Communication Green LED
Indication Status
Off Power off
Solid Green Power on
Flashing Green, 4 Hz ModBus Communications are active
R90C 4-Port Modbus
®
to Analog Hub
Original Document
227462 Rev. A
15 December 2022
227462