NOVUS V1.5x A - Manual (Page 41)

NOVUS AUTOMATION www.fieldlogger.net 41/103
If the RS485 interface was configured as Modbus master, the following screen will be displayed. You should set up a tag
(name - maximum of 16 characters), unique for each channel, and optionally a unit (maximum of 10 characters) for the
reading value.
In addition, for each channel, you should set up which network slave is to be read, what Modbus command should be
used and what is the initial register to be read from the slave. In the current version, the number of registers is always
"1", which means that you cannot do block reading.
An error value must also be configured. This value is shown on the channel when there is a problem, for example, a
communication error with the slave. The number of decimal places of the channel value must be inserted in the “Decimal
Places” field (available from firmware version 1.40 on). Configuring one decimal place, for example, will make a value
read of “2705” to be considered as “270.5” by the FieldLogger. It must be also informed whether the value being read is
signed or unsigned, which depends basically on how the slave puts its information available.
At the end of the channel configuration, you must click on the “Add” button in order to enter the channel in the list to the
left. If you want to remove a channel from the list, you must select it from the list and click on "Remove".
Remote Channels - Setting up a channel