Metasphere MM-IM - Page 35

MM-IM User Guide
35
 Note: For analogue points, the scaling defined in the properties is used to evaluate a
scaled value which is used within the Straton program.
The following table lists the available profiles for each variable and the available options in
each profile.
Profile Name
Description
Available options
MEDINA_AI
Analogue Input
Medina Point Number, units, scaling
factors, Action
MEDINA_AID
Derived Analogue
Input
Medina Point Number, units, scaling
factors, Action
MEDINA_AO
Analogue Output
Medina Point Number, units, scaling
factors, Action
MEDINA_DI
Digital Input
Medina Point Number, Mnemonics
(on and off state), Action
MEDINA_DID
Derived Digital Input
Medina Point Number, Mnemonics
(on and off state), Action
MEDINA_DO
Digital Output
Medina Point Number, Mnemonics
(on and off state), Action
MEDINA_PI
Integrated Input
Medina Point Number, units, Action,
Size
MEDINA_PID
Derived Integrated
Input
Medina Point Number, units, Action,
Size
For integrated inputs, the “size” option can be used to specify a rollover value for the
input. This way, the MM-IM works out the increment each time an integrated input
changes, and can detect when it rolls over to zero, making use of the full range of the
MM-IM’s counter inputs.
For example, if an integrated input is being read from DF1, the maximum value will be
32,767 as the DF1 driver uses the N registers, which are 16-bit signed numbers.
Therefore, in the properties for the point, choose “16 bit” for the size: