Siemens SINUMERIK 840C Installation Instructions Manual page 209

6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.2 General machine data (general data)
MD 312: Mixed I/O assignment for first mode group
MD 317: Mixed I/O assignment for sixth mode group
The first decimal place (units) defines the output byte of the module. Mixed I/O (1, 2) PLC 1-4.
The second decimal place (tens) defines the number of the mixed I/O module (counting from
left to right). Mixed I/O (1, 2) PLC 9.
After Power On or Reset all the outputs of the selected output byte are set to 1 (24 V).
If an emergency stop is triggered by a following axis/following spindle, the bits which are set to
1 in MD 588*/528* of the following axis/following spindle change to 0 in the mixed I/O.
(See description for these MDs).
On the Mixed I/O module, there is a switch that switches over the address coding betweeen
PAD (for NC) and DIP switch (PLC). In NC mode, this switch must be on "PAD".
318 - 323
Default value
0
A signal can be read in via a mixed I/O module or CSB board to trigger a retraction. One input
byte is used for each mode group.
MD 318: Mixed I/O assignment for first mode group
MD 323: Mixed I/O assignment for sixth mode group
The first decimal place (units) defines the input byte of the module. Mixed I/O (1, 2) CSB 1,
PLC 1-4.
The second decimal place (tens) defines the number of the mixed I/O module. Mixed I/O (1, 2)
CSB 8, PLC 9.
Module identifier 8 stands for the CSB board (number of inputs is limited to 6: right-justified in
input byte).
Active:
324
Default value
0
This MD defines for how much longer the parameterized axes are traversed by the interpolator
after Mode Group Stop has been recognized. Interpolator-controlled deceleration starts after
this time has elapsed (T1: see Section entitled "Stop").
Active:
325
Default value
0
This MD defines for how much longer the parameterized axes are decelerated by the
interpolator after Mode Group Maximum has been recognized (Time T2: see Section entitled
"Stop") before travel is continued with a speed setpoint zero injection and correction or
controlled follow-up (previous SW 3 "Stop").
Active:
_______
1) As from SW 4
2) As from SW 5
6–24
More user manuals on
Assignment of inputs of Mixed I/O module for retraction of
one mode group
Lower input limit
0
On Power On
Time for interpolator-controlled continuation
Lower input limit
0
On Power On
Maximum time for interpolator-controlled deceleration
Lower input limit
0
Power On
ManualsBase.com
1)
Upper input limit
81, 94 1) 8 2)
Upper input limit
1 000
16 000 (as from SW 4.4)
Upper input limit
1 000
16 000 (as from SW 4.4 )
©
Siemens AG 1992 All Rights Reserved
09.95
Active on
Power On
Units
–
Active on
1
)
at once
Units
ms
Active
1
)
at once
Units
ms
6FC5197- AA50
SINUMERIK 840C (IA)