B&B RT12-2222-ZP-12, RT12-0044-ZP-12, RT12-4444-9T-W20 User Manual

Zlinx

series

Wireless Modbus I/O Modules

Models:
RT12-0044-ZP-12
RT12-2222-ZP-12

RT12-4444-9T-W20

Documentation Number: RT-12 series-4006m (pn#7331)

This product designed and manufactured in Ottawa, Illinois USA

of domestic and imported parts by

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B&B Electronics

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2006 B&B Electronics. No part of this publication may be reproduced or transmitted in any form or by any

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Manual Documentation Number: RT-12 series-4006m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com

B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Manual Documentation Number: RT-12 series-4006m

Wireless I/O Modules – from B&B Electronics

We value our customers. If you have any suggestion to improve o ur system please
contact us at: [e-mail]

RT12-4444-9T-W20

RT12-0044-ZP-S12

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com

B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Manual Documentation Number: RT-12 series-4006m

RT12-2222-ZP-S12

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com

B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Manual Documentation Number: RT-12 series-4006m

Table of Contents

Chapter 1 – Introduction............................................................................................1

THEORY OF OPERATION..............................................................................................1

MODBUS OVERVIEW...................................................................................................3

MODBUS FUNCTIONS SUPPORTED...............................................................................5

MODBUS REGISTER MAPS ..........................................................................................6

PEER TO PEER OVERVIEW...........................................................................................8

Chapter 2 – System Identification...........................................................................10

RT12-4444-9T-W20 – FRONT PANEL IDENTIFICATION............................................10

RT12-4444-9T-W20 – EXTERNAL BATTERY BACK-UP............................................13

RT12-2222-ZP-S12 – FRONT PANEL IDENTIFICATION .............................................14

RT12-2222-ZP-S12 – EXTERNAL BATTERY BACK-UP.............................................17

RT12-0044-ZP-S12 – FRONT PANEL IDENTIFICATION .............................................18

RT12-0044-ZP-S12 – EXTERNAL BATTERY BACK-UP.............................................21

HARDWARE SET-UP ..................................................................................................22

Typical Application: Peer-to-Peer......................................................................22

Typical Application: Modbus..............................................................................24

Typical Application: Well Monitor and Control (Peer-to-Peer)........................25

Typical Application: Well Monitor and Control (Mo dbus) ...............................26

Typical Application: 4-20 mA to Voltage Conversion........................................27

Configuration Cable Description........................................................................28

Chapter 3 – Configuration & Programming..........................................................29

CONFIGURATION/MONITORING SOFTWARE SYSTEM MAP........................................29

CONFIGURATION/MONITORING SOFTWARE MAIN PAGE...........................................30

CONTROLLER CONFIGURATION ................................................................................31

CURRENT CONTROLLER SETTINGS ...........................................................................32

CONNECTING / DISCONNECTING...............................................................................35

Master, Slave, Modbus, Peer-to-Peer.................................................................36

MODBUS CONFIGURATION........................................................................................37

DIGITAL INPUT TYPES ..............................................................................................38

RTU ALARMS...........................................................................................................39

ANALOG OUTPUTS RESTING VOLTAGE.....................................................................42

UPDATING/SENDING CONFIGURATION TO RTU........................................................45

THIRD PARTY COMMUNICATIONS PROTOCOL SUPPORT ...........................................46

STATUS BAR.............................................................................................................47

DIGITAL OUTPUTS ....................................................................................................48

Manual Documentation Number: RT-12 series-4006m Table of Contents i

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ii Table of Contents Manual Documentation Number: RT-12 series-4006m

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Chapter 1 – Introduction

Theory of Operation

This manual will refer to two types of SCADA communications to pologies, Peer to
Peer (P2P) and Modbus.

The Peer to Peer topology
and digital I/O is communicated between the Master and Slave.

The Modbus topology
Modbus slaves. The Modbus master is responsible for requesting data from a
respective Modbus slave.

The ‘RT’ serie s RTU’s have se veral unique functions and features and has been
designed to replicate a wired sensor system. Transmission distances of up to 40 miles
(64 km), (depending on the radio type and with modified antennas), user
programmable sample/polling rates from 10 sam ples/sec to one sample every 20
seconds, programmable transmission retries, user programmable “full scale”
engineering units allow users to enter full scale for a respective sensor, just to name a
few.

The hardware architecture for RT series RTU’s are identical. Number of analog or
digital I/O depends on the type of RTU. Each respective RTU has Bi-directional
analog signal flow.

Other features include:

-Battery backup and in -circuit charging sys tem,

-MODBUS-RTU-Slave Enhancements,

-Programmable main voltage failure alarm,

-Low and high input voltage alarm,

-Communications failure alarm,

-Programmable resting voltages on communication failure,

-Programmable Output to Active High or Low during Communications Failure,

-Report by exception if a respective input changes by a +/- percentage,

-Configurable Inputs to Digital, Frequency or Accumulato r/Total.

An enhanced monitoring and configuration windows based program, allows you to
configure each controller as well as monitor data.

consists of one “Master” and one “Slave” RTU. Analog

consists of one Modbus Master, and as many as 255

Your system may consist of two RT type wireless analo g bridges or RTU. In Peer to
Peer mode, one controller must be programmed as the master and the other as the
slave. It is critical that your system be programmed properly. Confi rm your system
configuration before using your system.

All configuration parameters may be retrieved by connecting to the respective
device’s serial configuration port. The wireless type and other parameters may be
adjusted or viewed.

For Peer-to-Peer mode, check and confirm the following:

___ Your system consists of one MASTER and one SLAVE. Do not allow two
masters or two slaves to communicate with each other. The devices may communicate
but a systems failure will occur.

___ Make sure the system ID’s and RF-Network ID’s match.

WARNING:
ID numbers for the Master and Slave must match and must not be repeat ed with
any other Master/Slave pairs with the same RF-Network ID within the radio
range of each respective wireless pair. Doing so will cause cross talk between
master/slave pairs.

___ Make sure both Master and Slave have an antenna attached and installed correctly.

___ Make sure that the input power supply doe s NOT exceed 28 Vdc.

___ Make sure that the input power supply does N OT fall below 8.5 Vdc.

___ When power is applied to both the master and slave both units will communicate
with each other.

For Modbus Slave RTU mode, check and confirm the following:

___ Your system does not consist of two RT RTU/devices with the same Slave ID
numbers.

___ Each RTU/device has the same Radio ID and RF-Network ID numbers. Your
Modbus Master device will need to be connected to our Packaged Modbus Modem
(PMM) and will need to be configured with the same Radio ID and RF-Network ID
numbers as the Modbus Slave devices. The PMM may be configured to allow for an
RS-232 or RS-485 communications port.

Manual Documentation Number: RT-12 series-4006m 1

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com

B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

2 Manual Documentation Number: RT-12 series-4006m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com

B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Modbus Overview

This section is written for the person who will use the RT series RTU’s with Modicon
Modbus protocols for communication in Modicon programmable controller
applications. It describes the different types of Modbus registers supported. The RT
Series RTU’s support Modbus, Slave RTU mode.

The Modbus protocol provides the internal standard that the Modicon controllers use
for parsing messages. During communications on a Modbus network, the protocol
determines how each controller will know its device address, recognize a message
addressed to it, determine the kind of action to be taken, and extract any data or other
information contained in the message.

All of the RT series RTU’s use a common Modbus communications protocol. All data
is sent and received raw units.

Engineering Note: It may be necessary to force your PLC or Modbus master device
to delay between Modbus packet transmissions. Some devices transmit without a
break in data packets. Because of the nature of half-duplex radio you may need to
configure or program your device with a 30-50 mS delay between packets and a 1.5-

2.0 second timeout.

Modbus Data: Some Modbus devices send data differently than others. This example
shows Slave address 9, using fu n ction 3 and 16. It also shows he full data address of

40001. The RT series RTU’s do not send the full address. The Modbus protocol
allows a system to assume the data address based on the function type. This is true of
all Modbus functions for the RT series RTU’s.

09 03 9C 40 00 01 91 7E
09 10 9C 40 00 01 02 00 00 9E 54

09 = Slave 9
03 = Read Holding Registers
9C = Starting Address High -\
40 = Starting Address Low -/ 40001
00 = Number of Points High-\
01 = Number of Points Low -/ Read 1 Point
91 = Check Sum
7e = Check Sum

This is an example showing what data would look like for
the RT series RTUs.
09 = Slave 9
03 = Read Holding Registers
00 = Starting Address High -\
00 = Starting Address Low -/ 40001
00 = Number of Points High-\
01 = Number of Points Low -/ Read 1 Point
91 = Check Sum
7e = Check Sum

Manual Documentation Number: RT-12 series-4006m 3

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4 Manual Documentation Number: RT-12 series-4006m

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Modbus Functions Supported

01 Read Coil Status: Reads the ON/OFF status of discrete outputs (0X references,
coils) in the slave. Broadcast is not supported.

02 Read Input Status: Reads the ON/OFF status of discrete inputs (1X references) in
the slave. Broadcast is not supported.

03 Read Holding Registers: Reads the binary contents of holding registers (4X
references) in the slave. Broadcast is not supported.

04 Read Input Registers: Reads the binary contents of input registers (3X references)
in the slave. Broadcast is not supported.

05 Force Single Coil: Forces a single coil (0X reference) to either ON or OFF.

06 Preset Single Register: Presets a value into a single holding registe r (4X

reference).

15 (0F Hex) Force Multiple Coils: Forces each coil (0X reference) in a sequence of
coils to either ON or OFF.

16 (10 Hex) Preset Multiple Registers: Presets values into a sequence of holding
registers (4X references).

Modbus Register Maps

RT12-4444 Modbus Map

Function 1

00001 Digital Input 1
00002 Digital Input 2
00003 Digital Input 3
00004 Digital Input 4

Function 2
10001 Digital Input 1
10002 Digital Input 2
10003 Digital Input 3
10004 Digital Input 4

Function 3 (Holding Reg)
40001 AO 1
40002 AO 2
40003 AO 3
40004 AO 4
40005 Freq Input 1
40006 Freq Input 2
40007 Totalize 1 Low
40008 Totalize 1 High
40009 Totalize 2 Low
40010 Totalize 2 High
40011 Time to Save Counter

Function 4 (Inputs)
30001 AI 1 12bit
30002 AI 2 12bit
30003 AI 3 12bit
30004 AI 4 12bit
30005 Vin 10bit

RT12-0044 Modbus Map

Function 1

00001 Digital Input 1
00002 Digital Input 2
00003 Digital Input 3
00004 Digital Input 4

Function 2
10001 Digital Input 1
10002 Digital Input 2
10003 Digital Input 3
10004 Digital Input 4

Function 3 (Holding Reg)
40001 FQ1 (Input-1)
40002 FQ2 (Input-2)
40003 Totalize 1 Low
40004 Totalize 1 High
40005 Totalize 2 Low
40006 Totalize 2 High
40007 Time To Save Counter

Function 4 (Inputs)
30001 Main Vin 10Bit
30002 Batt Vin 10Bit

Manual Documentation Number: RT-12 series-4006m 5

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6 Manual Documentation Number: RT-12 series-4006m

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RT12-2222 Modbus Map

Function 1

00001 Digital Input 1
00002 Digital Input 2

Function 2

10001 Digital Input 1
10002 Digital Input 2

Function 3 (Holding Reg)
40001 AO 1
40002 AO 2
40003 Freq Input
40004 Freq-2/Input 1
40005 Freq-3/Input 2
40006 Total Count 1_Low
40007 Total Count 1_High
40008 Total Count 2_Low
40009 Total Count 2_High
40010 Time To Next Save

Function 4

30001 AI 1
30002 AI 2
30003 Battery Input
30004 Main Input

Manual Documentation Number: RT-12 series-4006m 7

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Peer to Peer Overview

Peer to Peer mode can be described as a Wireless Signal Re plicator. The product line
of RT series RTU’s can be configured as a Peer to Peer device. Two of the same type
RTU’s are required to create a peer to peer system, one Master and one Slave.

The master or slave is determined by the way It is
configured. The only difference between a master and
slave is, the master is responsible for starting the
communication process.

Both the master and slave must contain the same Radio ID
and Subnet Value. Only the respective peer-to-peer
systems may have the same Radio ID and RF-Network
numbers. Failure to do so will cause erratic output
voltages, AO’s or Digital Outputs, DO’s.

Each respective “RT” RTU device has the same number of Analog Inputs (AI’s),

Analog Outputs (AO’s), Digital Inputs (DI’s) and Digital Outputs (DO’s).

The number and type of I/O will depend on the type of RTU. Each RTU, including
I/O, is described in this manual.

Peer to Peer mode will allow you to transmit a 0-5 Vdc analog input, or a Digital
Input, from a Master device to a Slave device and vice-versa. A master’s analog or
digital inputs, become a slave’s analog or digital outputs, and vice-versa. This allows
for a full-duplex, looped system.

An application example would be a remote PLC with the RT12-2222’s analog and
digital I/O connected to it, this RTU will be conf igured as a Master. The Slave device
would monitor and control a water well system and would be connected to several
sensors, pump status indicators, current sensor, etc.

The PLC will view the analog and digital signals from the slave device as if the PLC
was connected directly to the several sensors, pump status indicators, current sensor,
etc. See “Typical Application – Well Monitor and Control, Peer-to-Peer” in this
manual.

8 Manual Documentation Number: RT-12 series-4006m

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Note: This section assumes that your computer is equipped
with a serial port and you have installed the RT series
configuration software.

To Connect to a Controller:

1) Install the configuration software (setup.exe).

2) Apply Power to the controller. The heartbeat/sanity LED will begin to FLASH.

3) Connect the programming cable to your PC’s serial Port.

4) Launch the “Configuration” software.

5) You must select a communications port. Select “Comm”, “Serial” then the desired
serial port.

6) The “Connect” box will be Red.

7) Press the “Connect” Button. The “Asserting” check box will become checked.

8) If the software successfully connects to the controller,

9) The “Connect” check box will become checked and the “Connect” butt on will turn
Green.

10) The software will begin retrieving configuration data from the controller you are
connected to. If all data boxes are not filled in refer back to step #6 in this section.

11) The software will indicate the type of device, Master or Slave.

12) For further programming features see, “Configuration/Programming Software
Setup.”

Chapter 2 – System Identification

RT12-4444-9T-W20 – Front Panel Identification

All analog voltage inputs and outputs are 12-bit, 0- 5 Vdc. All digital inputs are from 0
to 12 Vdc. Digital inputs must fall to 0 Vdc as a LOW. Digital o utputs are Open
Drain.

Connection Screw Terminal Description

PIN NAME DESCRIPTION

1 AO 1 Analog Output-1
2 AO 2 Analog Output-2
3 AO 3 Analog Output-3
4 AO 4 Analog Output-4
5 DO 1 Digital Output-1
6 DO 1 Digital Output-2
7 DO 1 Digital Output-3
8 DO 1 Digital Output-4
9 GND (-) Power Input. Ground.
10 PWR (+) Power Input. 10-28 Vdc.
11 AI 1 Analog Input-1
12 AI 2 Analog Input-2
13 AI 3 Analog Input-3
14 AI 4 Analog Input-4
15 DI 1 Digital Input-1
16 DI 2 Digital Input-2
17 DI 3 Digital Input-3
18 DI 4 Digital Input-4
19 BAT (+) Battery I/O. 10.5-28 Vdc.
20 GND (-) Battery.

Manual Documentation Number: RT-12 series-4006m 9

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10 Manual Documentation Number: RT-12 series-4006m

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Power: 10.5~28 Vdc

Most DC power supplies rated from 10.5 to 28 Vdc @ 1000mA, will work with the
RT12-4444-9T-W20. Do not use a power supply rated less than 1000mA. Doing so
may cause the RT12-4444-9T-W20 to continuously reset. Make sure that the power
supply voltage is maintained between the programmable HIGH and LOW supply
voltage limits or an alarm may occur. If a rechargeable battery is used or if you ar e
supplying voltage to a sensor using the same power used to power the RT12-4444-9T­W20, then the input volt age will need to be adjusted to th e proper voltage to mainta i n
respective equipment. Never exceed 28 Vdc. Damage by overheating to the controller
will occur causing the system to malfunction.

Data Activity LED Indicators

The RT12-4444-9T-W20 RTU is equipment with four LED indicators. The
RED/GREEN pair labeled “SERIAL”, indicate data transmit and data received. The
RED LED will blink when data is being transmitted The GREEN LED will blink any
time data is received, this is true for the MASTER and SLAVE.

Link/Sanity LED Indicators

The yellow LED indicator labeled “Status” indicates proper system operation. The
second yellow LED indicator, labeled “Error”, will flash any time an alarm is
programmed and the respective alarm is active.

Serial RS-232 Interface

Used to configure the RTU. See “Software Setup”.

The RT12-4444-9T-W20 has two rows of 10, screw type, connections. Using a
common type screwdriver, loosen the respective te rminal screw, insert the respective
wire and tighten.

The front panel is stenciled with each Connection number. Listed below are the
respective Connection numbers and Connection description.

Connection Screw Terminals Description

Pin 1: “AO 1” (+) Analog Output - 1, 0-5 Vdc
Pin 2: “AO 2” (+) Analog Output - 2, 0-5 Vdc
Pin 3: “AO 3” (+) Analog Output - 3, 0-5 Vdc
Pin 4: “AO 4” (+) Analog Output - 4, 0-5 Vdc
Pin 5: “DO 1” (+) Digital Output - 1, Open Drain, Act ive Low, Output
Pin 6: “DO 2” (+) Digital Output - 2, Open Drain, Act ive Low, Output
Pin 7: “DO 3” (+) Digital Output - 3, Open Drain, Act ive Low, Output
Pin 8: “DO 4” (+) Digital Output - 4, Open Drain, Act ive Low, Output
Pin 9: “GND” (-) Main Supply GROUND
Pin 10: “VIN+” (+) Main Supply 10.5 to 28.0, Must be > 13.0 to Charge
External Battery. Do Not Exceed 28 Vdc
Pin 11: “AI 1” (+) Analog Input - 1, 0-5 Vdc
Pin 12: “AI 2” (+) Analog Input - 2, 0-5 Vdc
Pin 13: “AI 3” (+) Analog Input - 3, 0-5 Vdc
Pin 14: “AI 4” (+) Analog Input - 4, 0-5 Vdc
Pin 15: “DI 1” (+) Digital Input - 1, Active Low, 0~12 Vdc
Pin 15: “DI 2” (+) Digital Input - 2, Active Low, 0~12 Vdc
Pin 15: “DI 3” (+) Digital Input - 3, Active Low, 0~12 Vdc
Pin 15: “DI 4” (+) Digital Input - 4, Active Low, 0~12 Vdc
Pin 19: “Batt” (+) Battery Charge During Normal Main Power Input.
Battery Backup during Main Power Fa ils.
Pin 20: “GND” (-) Battery Ground

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12 Manual Documentation Number: RT-12 series-4006m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax [phone] – www.bb-elec.com

B&B Electronics – Westlink C ommercial Park – Oranmore, Ga lway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com