Detailed Description Of Data Modules; Data Types; Control Module (Controlmodule, Module 2) - Grundfos CIM 150 PROFIBUS DP Functional Profile And User Manual

7. Detailed description of data modules

7.1 Data types

Grundfos CIU 150 and CIU 500 support the following data types.
All data types, except for data type 10, comply with specification
IEC 61158-6 standard data types for use in PROFIBUS/
PROFINET profiles.
Data type Description
1 Boolean
2 Integer 8
3 Integer 16
4 Integer 32
5 Unsigned 8
6 Unsigned 16
7 Unsigned 32
8 Floating point
9 Visible string
10 Non-standard
All multi-byte data types are transmitted with MSB (Most
Significant Byte) first.

7.2 Control module (ControlModule, module 2)

The control module is a PROFIBUS/PROFINET output module
used for the control of the booster system from bus. Its data type
is 10, non-standard. If pump 2 in a Multi-E or TPED pump also
has a CIM module mounted, for redundancy, any writings to the
control module must be done for both pump heads.
To control the Hydro MPC or Control MPC from bus,
you must select the control source "From bus" on the
CU 35X: "Settings" > "Secondary functions" >
"Control source".
Byte Bit Name
0 RemoteAccessReq
1 OnOff
2 ResetFault
Byte 1
(data type 5)
3 -
4 CopyToLocal
5-7 -
ControlMode [enumeration]
0: ConstSpeed*
1: ConstFreq*
2: -
3: ConstHead
4: ConstPressure
Byte 2
(data type 5)
5: ConstDiffPress
6: VarDiffPress
7: ConstFlow
8: ConstTemp
9: ConstTempDiff
10: ConstLev
OperatingMode [enumeration]
0: AutoControl
1-3: -
Byte 3
(data type 5)
4: OpenLoopMin*
5: -
6: OpenLoopMax
Bytes 4 and 5
Setpoint [0.01 %]**
(data type 6)
* Not supported by Hydro Multi-E.
** Closed loop:
MPC, Multi-E: Percentage of closed-loop feedback sensor
maximum value.
TPED, MAGNA3-D: Percentage of the setpoint range.
Open loop:
MPC, Multi-E: Percentage of the maximum performance.
TPED, MAGNA3-D: Percentage of the nominal pump frequency.
7.2.1 Explanation to event trigger
Rising edge
Control bits with a rising-edge event trigger behave like a
command that is executed when a bit transition from "0" to "1"
occurs. Each of them has a corresponding acknowledge bit in the
StatusModule which is set when the command is executed and
cleared when the control bit is written back to "0".
State
Control bits with a state event trigger behave like a "state" that is
forced upon the booster system. In CIU 150 and 500, the "actual
state" of the booster system as read from StatusModule is
continuously compared with the "requested" state in
ControlModule, and CIU 150 and 500 write the appropriate
GENIbus command to the booster system to make the two states
correspond to each other. Due to state restrictions or priorities,
this might not always be possible, see the explanation to the bit in
question.
Value change
Control bits/bytes with a change event trigger behave like a
command that is executed when the bit/byte changes its value.
CIM 150 andv500 will attempt to make the system operate
according to the requested value. The change will be reflected in
a bit/byte value in a corresponding input module.
7.2.2 Explanation to control bits
RemoteAccessReq
Control bit for setting the booster system in remote mode,
controlled from bus, or local mode, controlled from the operating
panel or Grundfos GO Remote:
Event trigger
The booster system is set to local mode and operates
State
according to its local operating mode and setpoint. With
State 0:
this setting, the other control bits in ControlModule will
Rising edge
have no influence.
-
The booster system is set to remote mode and operates
State according to the operating mode and setpoint set in
1:
ControlModule. The other control bits in ControlModule
-
will also be active.
However, certain commands from other control sources, for
example Stop or Max. from a local source or external Stop from a
digital input, have a higher priority and overrule the control from
the bus.
OnOff
Control bit used to start and stop the booster system:
0: For stopping the booster system remotely.
1: For starting the booster system remotely.
ResetFault
Control bit that resets alarms and warnings.
CopyToLocal
If this bit is set, the remote setting of Control mode, Operating
mode and the setpoint will be copied to the local setting during a
remote to local transition. This bit is not supported by MPC, Multi-
E model G and earlier models.
0: Copy to local settings inactive
Copy to local settings active. Switching the booster from
1: remote to local will not influence the behaviour of the
booster.
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