MODBUS SERVER offers a flexible set of controls to be externally read from and written to via the Modbus TCP and JBus protocols. Now the Q-SYS platform can be much more easily leveraged as a critical subsystem for paging and alarm purposes as the Modbus Server plugin offers easy integration with most Building Management System (BMS) software.

The plugin offers up to 999 each of Input Bits, Input Registers, Output Bits, and Output Registers offering a staggering number of control IO points – hundreds more than a typical control system. Inputs are read-only from a Modbus Client and represent system status or feedback information. General purpose inputs can be passed directly via control pins to allow Q-SYS hardware to act as real digital discrete inputs. Outputs are read-write and allow elements to be controlled from a Modbus Client. Both Input and Output Bits are represented as toggle buttons for easy control pin wiring. Registers are represented as integer fields with possible values from 0 to 65,535, and as hexadecimal string fields with values from 0x0000 to 0xFFFF.

Each Input and Output in the plugin may be configured for any IO address and do not have to be sequential. Unused IO can be disabled to reduce clutter and confusion. IO may also be temporarily disabled while testing or commissioning is ongoing. This provides maximum flexibility for working with larger, more complex systems.

Outputs offer a “Force” feature which allows manual override of data being written from the Modbus Client. When a Force is active, the provided value will be applied to the output allowing for easier system testing, commissioning, and temporary bypass.

Refer to the Plugin Guide Notes for information regarding protocol compatibility.

Price: $400

File Type:   Encrypted Q-Sys Plugin (QPLUGX)
Current Version: 1.0.0
Release Date: November 28, 2020
Compatibility: Q-SYS Firmware 8.0.1 and up
Additional Information:
See the Plugin Guide for more information