SI-Ethernet User Guide
163
Issue: 3
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Table 7-8 Supported drive assembly objects
7.5.9
Basic speed control
Output assembly object 0x14 (20
10
)
The PLC or scanner must be configured for 4 output bytes (or 2 output words) if this assembly
object is to be used.
Basic control word
The basic control word consists of 2 bytes (16 bits), with only 2 bits of the low byte being used as
shown below.
Assembly
object name
Class
Length
(Bytes)
Type
Default Mappings
Decimal
Hex (0x)
Bytes 0 to 3
Bytes 4 to 7
PrimaryI
100
64
4 to 80
Input
0.10.040
0.02.001
BscSpdCtrlI
70
46
4
Input
ExtSpdCtrlI
71
47
4
Input
SpdTrqCtrlI
72
48
6
Input
ExtSpdTrqCtrlI
73
49
6
Input
PrimaryO
101
65
4 to 80
Output
0.06.042
0.01.021
BscSpdCtrlO
20
14
4
Output
ExtSpdCtrlO
21
15
4
Output
SpdTrqCtrlO
22
16
6
Output
ExtSpdTrqCtrlO
23
17
6
Output
Table 7-9 Basic speed control
Data word
Function
Word 0
Basic control word.
Word 1
Speed reference (
SpeedRef
).
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
FaultRst
RunFwd