Bronkhorst DeviceNet slave interface - Manual (Page 16)

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Page 16 DeviceNet interface 9.17.026
3.3.7 S‐Single Stage Controller Object
Class Code 33 HEX
The S‐Single Stage Controller Object models a closed‐loop control system within a device.
CONTROLLER OBJECT’S INSTANCE ATTRIBUTES (Instance = 1)
SINGLE STAGE
CONTROLLER
OBJECT
ATTRI‐
BUTE
ATTRIBUTE NAME
SERVICE
CODE
DATA TYPE
FLOW‐
BUS
Comment
0x33 0x01 Number of
Attributes 0x0E USINT 6
0x33 0x02 Attribute List 0x0E Array of USINT
0x33 0x03 Data Type 0x0E, 0x10 USINT 0xC3=INT, 0xCA=REAL
0x33 0x04 Data Units 0x0E, 0x10 UINT 0x1001=counts, 0x1400=sccm, etc
0x33 0x05 Control Mode 0x0E, 0x10 USINT
0x33 0x06 Setpoint 0x0E, 0x10 INT or REAL 1 1,1 See attribute 3 and 4. For data unit
counts the setpoint attribute must be in
the range of 0..32000.
Where: 0 = min. setpoint (0%)
32000 = max. setpoint (100%)
0x33 0x0A Status 0x0E BYTE
0x33 0x13 Ramp Rate 0x0E, 0x10 UDINT 1,2 Setpoint slope in msec
(max. 3000000 msec)
1
Depends on the value assigned to the Data Type attribute. If the value of this attribute is 0xC3, the
selected data type is Integer, and if the value of this attribute is 0xCA, the selected data type will be the
IEEE‐754 single‐precision floating‐point.