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3.4.5.2. Instance 21/71 – DeviceNet Standard (
f894
= 1)
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
-
Net Ref
*
Net Ctrl
*
-
-
Fault reset
Run reverse Run forward
1
-
2
Drive Reference Speed
min
-1
(Low byte)
3
Drive Reference Speed
min
-1
(High byte)
Fig. 3 Output Instance 21 Layout
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
At
reference
**
Ref from
Net
**
Ctrl from
Net
**
Ready
Running
Reverse
Running
Forward
Warning
Faulted/
tripped
1
Drive Status
***
2
Drive Actual Speed
min
-1
(Low byte)
3
Drive Actual Speed
min
-1
(High byte)
Fig. 4 Input Instance 71 Layout
*
Bit 5 and 6 of the instance 21 byte 0 are defined as follows.
Bit 5 (Net Ctrl) ............ When “1” is set, bits 0 (Run forward) and 1 (Run reverse) of byte 0 are enabled.
When “0” is set, Run/Stop is according to setup of the parameter
cmod
.
Bit 6 (Net Ref) ............ When “1” is set, bytes 2 and 3 are enabled.
When “0” is set, Drive Reference Speed is according to setup of the parameter
fmod
.
**
Bit 5, 6, and 7 of the instance 71 byte 0 are defined as follows.
Bit 5 (Ctrl from Net)......... When RUN/STOP command from DeviceNet is enabled, “1” is set.
Bit 6 (Ref from Net)......... When frequency command from DeviceNet is enabled, “1” is set.
Bit 7 (At reference).......... When output frequency becomes the same as frequency command, “1” is set.
***
Drive Status is same as the Control Supervisor class State attribute (refer to section 3.7.2).
1 (= BN: 00000001): Startup
2 (= BN: 00000010): Not Ready
3 (= BN: 00000011): Ready
4 (= BN: 00000100): Enabled
5 (= BN: 00000101): Stopping
6 (= BN: 00000110): Fault Stop
7 (= BN: 00000111): Faulted
