Wireless gateway/repeater - MIDAM WCOM51
Router/repeater for integration of up to 75 wireless devices. The communication is based on the AES 128 encrypted Midam KFP protocol, which allows to update the device firmware on a wireless basis across the wireless network topology. Native modbus map grants seamless integration into the DDC/SCADA systems. Thanks to the “dual stack radio“ technology, it can read values from wMbus based devices simultaneously.
- Integration of up to 75 wireless devices
- Encrypted Midam KFP protocol
- Integration into DDC/SCADA systems
- Dual-stack radio – simultaneous reception of data from vMbus devices
Function
WCOM51 embeds AES 128-bit, the most secure encryption standard for wireless connections. It can work in two modes, direct communication or cached mode. Each device is mapped to Modbus RTU register area. Up to 75 devices can be mapped with configurable offset and length. Communication status is available through timestamp, comm error and status. Wireless coverage area can be extended using the mesh functionality, which is possible thanks to connection of more WCOM51 devices in a row on a RS485 bus. Configuration and data message are exchanged between repeaters on a real time basis. Wireless communication is based on an unlicensed 868 MHz band and uses higher radio frequency transmitter power up to + 20 dBm. Receiver contains +12 dB preamplifier. SMA antenna connector makes implementation of high gain external antenna possible. Direct mounting flex antenna, or external antenna on coaxial cable with SMA connector can be installed, for example for mounting outside switchboard in order to gain better radio signal reception. Gateway configuration is made by software tools over wireless network, or over wired RS485 terminals. The device has factory-set values to ensure the correct default function and allows direct reading and writing of values to the Modbus map, which is available in a separate document. All settings are also stored in the Modbus map directly in the device. Before using the device for the first time, it is necessary to pair it and it is recommended to perform individual configuration, especially to change the encryption password.
Application
- Modbus RTU to wireless Midam KFP protocol
- Integration of up to 75 Midam KFP devices
- Integration of up to 75 WMbus devices
- Wireless coverage extension
- Wired or wireless integration into SCADA systems
Pairing
Two devices are required for mutual communication. Both must be powered and located in close proximity to each other. Usually, wireless gateway or configuration dongle is used to set up remote wireless devices. Use look-up function in software tool to display a list of all available devices in range and assign or adjust parameters based on wireless ID code for each single device. There is a comprehensive help section integrated in the software tool to provide support during the wireless device set up procedure.
SCADA system integration
Direct integration into various SCADA systems through wired Modbus RTU (RS485) protocol is possible.
Midam KFP Password change
Prior to the first use, the encryption password (default “MIKROKLIMA1234AB”) must be changed using the WUSB01 configuration dongle and the relevant software tool.