Wireless Network Functions; Power Consumption; Average Groups; Alarms - Produal Proxima WBU Commissioning And Maintenance Instructions

2 Wireless network functions

2.1 Power consumption

The wireless devices can be powered with a battery or with wired power supply.
The battery powered transmitters measure the battery level two times a day. The battery level has six
possible values: 99, 90, 50, 10, 5 and 1 %. The value means that the battery level is at least the given
value, not the absolute value.
The battery life depends on the installation environment, used polling interval and firmware updates.

2.2 Average groups

The data collected from the transmitters can be arranged into five average groups. One average group
can be represent one measured property, such as temperature, humidity, carbon dioxide, etc. One
transmitter can be in several groups and one group can include only one measured property. The
average groups can be defined using Produal MyTool
The average value is calculated continuously from the latest available values. The highest and lowest
measurements are also available for the group.
Measurements that exceed or fall below a particular subset can be dropped out from the calculation.
For example, you can set that under 15 ºC and over 30 ºC measurements are dropped from the
average calculation. These limits are only available for temperature values.

2.3 Alarms

You can read the alarms based on the wireless network information from the base unit Modbus
registers. The alarms always include the device ID that is sending the alarm. The following alarms are
available.
• Battery level alarm. You can set the battery level that causes an alarm.
• Missing transmitter alarm.
• Measurement value alarm. You can set the measurement value limits that define the normal values.
An alarm is caused when the value drops under the low limit or rises over the high limit.

2.4 Input register cloning

With the input register cloning you can group the transmitter information to a smaller Modbus register
range. This enables the read multiple values Modbus function. The function can be used for reading
temperature measurements from the whole network, for example. You can set up to ten cloned
register value sets (0...9) that can be read from the same input register range.
The cloned input register range is from 18X00 to 18X99 according to the transmitter ID. The X is the
set number (0...9). The cloned registers are defined in the holding registers 18000...18009.
For example if you want to read a temperature value from the transmitter with ID 27, you can read
the values from the input register 18026. The cloned register set 0 is for temperature by default. The
original register for the transmitter temperature is 22651.

2.5 Value over bus (VOB)

The data can be transmitted in two directions, which allows also external values to be viewed on the
transmitters' displays. The base station has writeable Modbus registers, where the data can be written
and then send to the transmitters. The function is useful for example if BMS information must be
viewed on a transmitter display.
Produal Oy | Keltakalliontie 18, FI 48770 Kotka, Finland | tel. +358 10 219 9100 | fax. +358 5 230 9210 | info@produal.com
Published: 18.07.2019
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Information is subject to change without prior notice.
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