Eurotherm 6100, User Manual

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100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
HA029324
Issue 11 Oct 14 Page 153
4.3.16 MASTER COMMS (Cont.)
TYPICAL CONTROLLER PARAMETERS
Channel Number Allows the user to select the number of the channel to be confi gured. As soon as
Modbus Master is selected as input type, this changes from ‘Channel 1’ (for example)
to ‘Read 1’. Once communication with the slave is established, this will change to the
descriptor of the remote channel (unless the controller type does not support this
item, in which case a suitable descriptor can be entered later in the confi guration).
Slave Allows the user to select (from a picklist), the slave from which data is to be retrieved.
The picklist contains all the Remote Devices confi gured as slaves in the
Master Comms
Confi guration described above.
Digital Allows data to be read into a digital input .
Parameter Allows the user to select a specifi c parameter (table 4.3.16a shows a typical set) or
‘User defi ned’ to be selected. ‘User defi ned’ allows a (decimal) register address to be
entered (see ‘
User defi ned ’, below).
Loop number Allows the user to enter a Loop Number for the parameter read.
Process Value Allows one of three rates to be set for reading the Process Value. The three rates (Low,
Medium and High) have the values set in the Master Comms confi guration .
Span This ‘Span’ setting allows the Zero and Full Scale values for the parameter to be en-
tered.
Zone etc. The remaining items are as described in Channel Confi guration in section 4.3.3 .
Alarm status
Auto/Manual
Process value
Read alarm active status
Read alarm unacknowledged status
Working output power
Working setpoint
Table 4.3.16a Typical Controller read parameters