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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
0At
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