B&B Electronics RT12-2222-ZP-12, RT12-4444-9T-W20 Manual Documentation Number RT-12 series-4006m

Page 20

If your system is configured on Peer-to-Peer mode, by default, if the Slave unit does not receive a response from the master within 20 seconds of any polling sequence, and if the ”Set Rest Voltage On Comm Error” is enabled, an alarm will sound on the Slave unit and depending on alarm parameters set, would cause the Slave’s outputs to be set with the user defined resting voltages.

Retries: In Peer-to-Peer mode, this parameter determines the number of consecutive failed polling attempts before a communications failure occurs. It is not recommended to set the number of retries higher than 10 attempts. Large numbers may cause an unnecessary delay in communications failure response time; a low number may cause the system to prematurely fail. This parameter has no affect in Modbus mode.

Output Power: This parameter determines the RF Power output on some RTU’s. If a respective RTU does not support a variable RF power out the parameter will continue to display “Output Power”.

Manual Documentation Number: RT-12 series-4006m

33

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104www.bb-elec.comB&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445www.bb-europe.com

The “ID” field has a dual purpose, as the controller number when in peer-to-peer mode and the Modbus slave address field when in MODBUS mode.

If Modbus is selected, the Radio ID will automatically appear and the “ID” field will automatically change to “MODBUS ID.”

If your controller is programmed in Modbus mode, the ID field will change to the Modbus Slave address. Valid addresses are from 1 to 255. Keep in mind that the Modbus master you are interfacing to may not support the full spectrum of slave address IDs. Please refer to your device user’s manual.

34

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 815-433-5104www.bb-elec.comB&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445www.bb-europe.com

Image 20
Contents Wireless Modbus I/O Modules Wireless I/O Modules from B&B Electronics Table of Contents For Modbus Slave RTU mode, check and confirm the following Theory of OperationFor Peer-to-Peer mode, check and confirm the following Modbus Overview RT12-4444 Modbus Map Modbus Functions SupportedModbus Register Maps RT12-2222 Modbus Map Peer to Peer OverviewTo Connect to a Controller RT12-4444-9T-W20 Front Panel IdentificationConnection Screw Terminal Description Power 10.5~28 Vdc Data Activity LED IndicatorsLink/Sanity LED Indicators Serial RS-232 InterfaceRT12-4444-9T-W20 External Battery Back-up RT12-2222-ZP-S12 Front Panel IdentificationConnection Screw Terminals Description RT12-2222-ZP-S12 External Battery Back-up RT12-0044-ZP-S12 Front Panel IdentificationPower 10.5~28 Vdc Typical Application Peer-to-Peer RT12-0044-ZP-S12 External Battery Back-upHardware Set-up Typical Application Peer-to-Peer Typical Application Modbus Typical Application Well Monitor and Control Peer-to-Peer Typical Application Well Monitor and Control ModbusPin# Connection color Configuration Cable DescriptionTypical Application 4-20 mA to Voltage Conversion Configuration/Monitoring Software System Map Configuration/Monitoring Software MainController Configuration Current Controller SettingsManual Documentation Number RT-12 series-4006m Connecting / Disconnecting Master, Slave, Modbus, Peer-to-PeerModbus Configuration Digital Input TypesRTU Alarms Input Voltage Alarm Limits Analog Outputs Resting VoltageManual Documentation Number RT-12 series-4006m Updating/Sending Configuration to RTU Third Party Communications Protocol SupportStatus Bar Digital Outputs