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© 2019 OJ Electronics A/S
Connector “P” – “Modbus out” exit port
(see figs 3 and 13)
OJ GreenZone™ Module MP-Bus is equipped with a “Modbus in” (see figs 3 and 5) and
a “Modbus out” (see figs 3 and 13) RJ12 connector for integration in the zone-control
system with a standard Modbus RJ12 cable (see figs 4, 5 and 13). The terminal layout
of the RJ12 Modbus connector is shown in fig. 6. The Modbus cable must be as shown
in fig. 7. Modbus communication is OK when the green LED flashes regularly.
Addressing OJ GreenZone™ Module MP-Bus
The OJ GreenZone™ Module MP-Bus is addressed automatically by the OJ Green-
Zone™ Master to which it is connected.
The address is shown on the display of the OJ GreenZone™ Module MP-Bus (see table
3 in these instructions). Further information about addressing is found in the OJ Green-
Zone™ Master manual and in OJ Green Zone installer instructions.
Safeguarding data in OJ GreenZone™ Module MP-Bus
In the event of communication faults and/or power failure to the OJ GreenZone™
Module MP-Bus, all data will be saved. When communication and/or the power sup-
ply has been re-established, the OJ GreenZone™ Module MP-Bus will automatically
resume normal operation.
TECHNICAL DATA
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VAC ±10% (see figs 8 and 9)
Consumption, no load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 3.4 VA
Consumption with max. load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 40 VA
24V AC output, short-circuit protected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 24 VA
Ambient temperature, operation . . . . . . . . . . . . . . . . . -20/+40 °C (transient -30/+50 °C)
Ambient temperature, storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -50/+70 °C
Modbus, cascade connections . . . . . . . . . . . . . . . . . . . . . .2 x RJ12 connectors (6P6C)
MP-Bus, actuator connections . . . . . . . . . . . . . . . . . . . .4 x 3 x 1.5 mm
2
screw terminals
Actuator supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 x +24V AC 0.3A
Modbus, sensor connections . . . . . . . . . . . . . . . . . . . . . . . . .1 x RJ12 connector (6P6C)
Sensor supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x +24V DC 0.25A
Modbus communication . . . . . . . . . . . . . . . . . . . . . . . . . .RS-485, 38.4 kBaud, 24 VDC
Modbus address, OJ Zone Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self-configuring
Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 x built-in pull-up
Sensor inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x PT1000
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x +24V DC 0.1A
Voltage input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x 0-10 VDC
Measuring range, humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-100 % RH
Measuring range, temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 - 100 °C
OJ GreenZone™ Module MP-Bus
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