Max_Diag_Data_Len=34
Max_User_Prm_Data_Len = 9
Ext_User_Prm_Data_Const(0)= 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
Module=”WM Pump, 3/14 word out/in” 0x62,0x5D
1
EndModule
20.4
User Parameter Data
The user parameter data is set by entering values into the ‘Ext_User_Prm_Data_ Const(0)’
line of the GSD file. This is indicated below and the relevant bytes are listed in the table.
No further changes should be made to the GSD file and Watson- Marlow accepts no
responsibility for pump failures arising from changes to the GSD file.
Table 22 - User Parameter Data
Ext_User_Prm_Data_
Const[0]=
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
Byte
1
Byte
2
Byte
3
Byte
4
Byte
5
Byte
6
Byte
7
Byte
8
Byte
9
8 bit
Byte 1
Pre Assigned
8 bit
Byte 2
Reserved
8 bit
Byte 3
Min Speed (High byte of 16-bit unsigned)
8 bit
Byte 4
Min Speed (Low byte of 16-bit unsigned)
8 bit
Byte 5
Max Speed (High byte of 16-bit unsigned)
8 bit
Byte 6
Max Speed (Low byte of 16-bit unsigned)
8 bit
Byte 7
Fail Safe
8 bit
Byte 8
Fail Safe Speed (Low byte of 16-bit unsigned)
8 bit
Byte 9
Fail Safe Speed (High byte of 16-bit unsigned)
Set Min/Max Speeds
The Min/Max Speed parameters are used to set the minimum and maximum speed from the
PROFIBUS interface. The values are only used if the matching bit in the Control Word is
enabled and they are not zero. The values are 16 bit unsigned in 1/10th of RPM of the head
speed.
If the user requests the pump to operate at a lower speed than the defined minimum speed
from the user parameter data (bytes 3, 4) then the pump will operate at the defined
minimum speed.
If a maximum speed has been configured in the user parameter data, then the pump will be
limited to this maximum speed even when the master requests a higher rpm.
Fail Safe
The fail-safe user parameter is used to set the correct course of action to take in the event
of a PROFIBUS communications failure. The fail-safe byte is configured as shown in the
following table. If no bits are set or an invalid bit pattern is set the default fail safe
behaviour shall be to stop the pump.
Hex
Description
0x00
The pump will stop
m-qdos-allmodels-en-07
74