You should consider D series Modbus RS485 voltage input modules. Because they let you read voltage output sensing devices with spare Modbus RS485 ports for temperature measurement.
Modbus RS485 voltage input
The D series is a versatile family of Modbus RS485 input modules, because a signal range is available for many sensor measurement applications, the supply voltage range is a wide 10 to 30Vdc (DIN rail units 5Vdc), as well as Modbus compatibility with a number of software options
When you have spare a spare RS485 port, and need to add voltage measurement, use D series voltage input modules. Because D series voltage input modules allow the simple measurement of industry standard signals. They use the standard Modbus protocol. So you can easily connect your existing voltage output sensing devices to modern control systems. They are a simpler way to add voltage measurement to a RS485 bus than other types. Voltage output sensing devices are commonly available sensor signal conditioners. Because they are common, they are in many cases used in HVAC systems, refrigeration systems, chillers, environmental monitoring, computer room monitoring, dryer, and a variety of other applications.
When you need simple to use Modbus RS485 voltage input module, use the D series. In other words D series Modbus RS485 voltage input modules are a simple way to add voltage measurement to a RS485 bus.
D Voltage Inputs
Voltage types: +/- Vdc
Ranges: 100mV, 1V, 5V, 10V, 100V (factory set).
Resolution: 0.01% of full scale.
Accuracy +/-0.02% of full scale.
Connectors: Screw terminal barrier plug (supplied).
Surface Mount: Screw threads: 6 X 32, spacing: 2.700″ (6.858 cm), with captive hardware.
Rail Mount: DIN 35mm
DIN-110 DIN rail mounted 1 voltage input modules include DIN-111, DIN-112, DIN-113, DIN-114, DIN-115
D1100M surface mounted 1 voltage input modules include D1112M, D1122M, D1132M, D1142M, D1152M
D5100M surface mounted 4 voltage input modules include D5112M, D5122M, D5132M, D5142M, D5152M