Modules

We offer the following WACO units:

 
WM868-MM
- WM868-MM is a half-duplex radio 868MHz input unit equipped with M-Bus Master output galvanic interface which can address up to 250 M-Bus slaves, group comprised measuring devices connected via cable. Data transfer from M-Bus measuring devices via half-duplex radio communication to central measuring station is fully transparent.
 
WM868-MS
 - WM868-MS is a half-duplex radio 868MHz unit equipped with M-Bus Slave input galvanic interface which can be addressed by M-Bus master via copper cable. WM868-MS is used to bridge an air gap between WM-868-MS station and a distant WM868-MM via half-duplex 868MHz radio communication to this WM868MM unit which continues to communicate with measuring devices via copper cabling as described above.
 
WM868-R2
 - WM868-R2 is a serial communication unit. It has one RS232 interface and one half-duplex 868MHz radio interface. Two WM868-R2 connected via 868MHz radio link form a fully transparent asynchronous serial data transfer line. Typical data transfer speed is 9600 bit/second.
 
WM868-R4
 - WM868-R4 is a serial communication unit. It has one RS485 interface and one half-duplex 868MHz radio nterface. Two WM868-R2 connected via 868MHz radio link form a fully transparent asynchronous serial data transfer line. Typical data transfer speed is 9600 bit/second.
 
WM868-REP
- WM-REP is used to relay half-duplex 868HMz radio communication when a retranslation is required.
 
WM868-SI
- WM868-SA/SI is a combined analog and digital input unit with one half-duplex 868MHz radio interface. This unit has 4 analog 0-10VDC or 0-20mADC inputs , 1 pulse width modulation (PWM) input and 4 digital inputs. The WM868-SA/SI unit converts analog analog inputs to digital information, furthermore it transforms one PWM signal and sums pulses coming to 4 digital inputs in CPU counters to form frames used for radio communication.
 
WM868-SJ
- WM868-SJ is used to address more WM868-SA/SIs via half-duplex 868MHz radio communication in order to gather and buffer data sent by them. Process data may be isent to a central unit by means of RS232/RS485 galvanic interface.