KROHNE BATCHCONTROL 5014 C - Manual (Page 16)

Installation and operating instructions 16 BATCHCONTROL
Part B IFC 014 batch controller
4 Description of functions
Six contacts are available for the different functions. Every contact can be switched over as a
switching output, switching input or analogous by software. In addition, the device has one CAN
bus interface for communication, two internal temperature sensors and one flow sensor .
4.1 Contact outputs
Up to six power outputs (24V / I < 200mA), switch over to ground (low side driver) or to the 24V
supply voltage (high side driver), can be programmed by software. The drivers communicate via
the internal data bus with the logic and the other control and monitoring functions: undervoltage,
overvoltage, overtemperature and failure detection. When commutating inductive loads, the
dissipated power peak is be significantly reduced by the internal freewheeling diode. All power
drivers are connected to the supply voltage. These are monitored by overvoltage and undervoltage
comparators with hysteresis, so that the correct function can be checked in the application at any
time. They are short-circuit resistant (I
max
2A). Overcharge is indicated by the bus interface.
Consumer are controlled for disconnections (cable break) by the outputs, indication by the Bus
interface.
All valve outputs are on equal basis. The following functions can be adjusted:
•
Without use (off)
•
Permanently on (breakdown identification)
•
Binary output controlled by the bus
•
Switch on after time or after reaching target volume or after reaching a defined volume flow
•
Turn off after time or reaching target volume or after reaching a defined volume flow
• Automatically,
regulation for target filling volume
•
Customers specific programming
4.2 Voltage input
Up to six voltage inputs with common ground for 24V supply voltage are available. The voltage
range is from 0 volts up to 11 volts with a resolution of 8 bits. The input impedance of the inputs ‘1’
and ‘2’ is 220kOhm, for the inputs ‘3’ up to ‘6’ is 22kOhm. The update rate is 8ms. For every input
scaling factors and offsets can be defined. To use this functionality the corresponding output has to
be switched off. Each voltage input can be programmed for the following functions:
•
Without use (off)
•
Voltage input for the bus
•
Start of filling process
• Emergency
off
•
Customers specific programming
4.3 Contact inputs
Up to six inputs with common ground for 24V supply voltage. To use this functionality the
corresponding output has to be switched off. Each control input can be programmed for the
following functions:
•
Without use (off)
•
Binary input for the bus
•
Starting of filling process
• Emergency
off
• Customers
specific programming
4.4 CAN bus and parameter
For the interface the CAN bus is used. Baud rates within the range 20k up to 1M Baud are
possible. For the protocol CANopen is applied. The interface has a galvanic connection to the 24V
supply! The possible functions are described in one of the following chapter.
Default Baud rate is 20k Baud.
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