Siemens SINUMERIK 840C Installation Instructions Manual page 342

09.95
NC MD 7
920*
Bit 1 Bit 1=1 Emergency Stop triggers a retraction.
Bit 1=0 Emergency Stop does not trigger a retraction.
Bit 0 Bit 0=1 Mode Group Stop triggers a retraction.
Bit 0=0 Mode Group Stop does not trigger a retraction.
Active:
NC MD 7
Input bit 7 Input bit 6
triggers triggers
922*
retraction retraction
1)
Effect of mixed I/O or CSB inputs bit 7 to 0
Bit 7-0 Bit 7-0=1 If a 0 V signal is applied at the corresponding input of the mixed I/O
module or CSB, a retraction is triggered.
Bit 7-0=0 The level of the input does not trigger a retraction in any position.
Active: at once
Note:
The 6 CSB inputs correspond to bits 2 - 7, bit 0 corresponds measurement input 1, bit 1
corresponds to measurement input 2.
_______
1) As from SW 4
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
Bit No.
6 5 4
at once
Bit No.
6 5 4
Input bit 5 Input bit 4
triggers triggers
retraction retraction
1) 1) 1)
6FC5197- AA50
6.6.6 Channel-specific MD bits 2
3 2 1
Emergency
Stop
triggers
retraction
3 2 1
Input bit 3 Input bit 2 Input bit 1
triggers triggers triggers
retraction retraction retraction
1) 1) 1)
0
Mode
Group Stop
triggers
1) 1)
retraction
0
Input bit 0
triggers
retraction
1)
6–157