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EtherCAT
Operating Manual EtherCAT for, PMCtendo DD5 and PMCprotego D
1002906-EN-02
24
4.9
Latch- control word and latch status word
Latch control word (2 Byte):
Bit
Value (bin)
Value (hex)
Description
0
00000000 00000001
xx01
Enable external latch 1 (positive
rise)
1
00000000 00000010
xx02
Enable external latch 1 (negative
rise)
2
00000000 00000100
xx04
Enable external latch 2 (positive
rise)
3
00000000 00001000
xx08
Enable external latch 2 (negative
rise)
4
00000000 00010000
Xx10
Enable internal latch C (positive
rise)
5 - 7
Reserved
8 – 12
00000001 00000000
01xx
Read external latch 1 (positive
rise)
00000010 00000000
02xx
Read external latch 1 (negative
rise)
00000011 00000000
03xx
Read external latch 2 (positive
rise)
00000100 00000000
04xx
Read external latch 2 (negative
rise)
00000101 00000000
05xx
Read external latch C (positive
rise)
13 - 15
Reserved
Latch status word (2 Byte):
Bit
Value (bin)
Value (hex)
Description
0
00000000 00000001
xx01
External latch 1 valid (positive
rise)
1
00000000 00000010
xx02
External latch 1 valid (negative
rise)
2
00000000 00000100
xx04
External latch 2 valid (positive
rise)
3
00000000 00001000
xx08
External latch 2 valid (negative
rise)
4
00000000 00010000
Xx10
Internal latch C valid (positive
rise)
5 - 7
Reserved
8 – 11
00000001 00000000
01xx
Acknowledge value external
latch 1 (positive rise)
00000010 00000000
02xx
Acknowledge value external
latch 1 (negative rise)