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A p p e n d i x G
G. Adding a RIO to the TCU
The TCU can poll Modbus slave devices, such as the RIO032 and RIO128, and store their data in the TCU’s unused
modules (referred to as modules H-O in the TCU’s configuration screen). This information can then be made available to
your telemetry system by adding and configuring the modules in HT3.
More information on the TCU’s Modbus capabilities can be found in “Chapter 7: Programming.”
Notes:
• The instructions below are for the typical application of adding a RIO032 to the TCU. The procedure for adding a
RIO128 would be similar except for the additional I/O that must be configured in the TCU and your telemetry system
(HT3 or third-party HMI).
• If you are using an HMI other than HT3, you will need to configure that software with the correct Modbus register
information in order to poll the TCU as a Modbus slave.
• If the TCU is configured for PCU emulation, it must be changed to the TCU module configuration in order to add a
RIO, or any other Modbus slave device.
The steps required to add a RIO to a TCU are:
1. Set RIO’s device/station address (typically 1).
2. Configure RIO for Learn mode.
3. Mount RIO and I/O as detailed in the
RIO032 Installation and Operation Manual
.
4. Connect RIO to TCU via RS-485 interface.
5. Place RIO in Learn mode.
6. Configure the TCU to poll the RIO by entering and saving RIO’s I/O information in the TCU.
7. Verify communication between TCU and RIO.
8. Add and configure the RIO’s I/O in HT4.
RIO Replacement
The RIO032 features a detachable address board used to configure the
RIO032’s device/station address. The address board’s screw-terminal lanyard
enables you to tether it to the control panel (for example, to the panel’s earth
ground). In the event the RIO032 needs to be replaced, the address board can
be disconnected from the RIO032 and attached to a new RIO032. This ensures
that the device/station address remains with the site; the new RIO032 doesn’t
have to be addressed.
Summary of Contents for TCU800
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Page 56: ...46 C h a p t e r 5 Quick View Analog View Pump Statistics ...
Page 57: ...47 U s e r I n t e r f a c e Alarms Settings Screen 1 Settings Screen 2 ...
Page 58: ...48 C h a p t e r 5 Advanced Settings About ...
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