4 Data Descriptions 11.03
4.2 Machine data for SIMODRIVE 611 digital
© Siemens AG 2003 All Rights Reserved
4-242 SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
4.2.2 Description of the machine data
1300 $MD_SAFETY_CYCLE_TIME
611 digital
Monitoring clock cycle Relevant for:
FD/MSD
Unit:
31.25 µs
Default:
384 (= 12 ms)
Minimum value:
16
Maximum value:
800
Data type:
short integer
Becomes effective:
POWER ON
This data sets the monitoring clock cycle for safe operation.
Position controller clock cycle <= Monitoring clock cycle <= 25ms
The monitoring clock cycle defines the response time of the monitoring
functions. It should be noted that a short monitoring cycle time increases the
load on the CPU.
1301 $MD_SAFE_FUNCTION_ENABLE
611 digital
Enable safety functions Relevant for:
FD/MSD
Unit:
Hexadecimal
Default:
0
Minimum value:
0
Maximum value:
FFEB Hex
Data type:
Binary
Becomes
effective:
POWER ON
This data enables the partial functions for safe operation on an axis-specific or
spindle-specific basis. The bit assignment is as follows:
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
High byte Enable safe cams
SN4 - SN4 + SN3 - SN3 + SN2 - SN2 + SN1 - SN1 +
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Low byte Enable
(840D from SW4.2)
Reserved, these bits must be set to 0 Enable
Cam
synchron-
ization
External
STOPs
Override,
safely-
reduced
speed
Enable
external
ESR
activation
Enable
actual
value
synchroniz
ation 2-
encoder
system
Reserved
for
functions
with
absolute
reference
SE SBH/SG
1302 $MD_SAFE_IS_ROT_AX
611 digital
Axis-specific bits for safety-relevant functions
Relevant for:
FD/MSD
Unit:
-
Default:
0
Minimum value:
0
Maximum value:
00 03
Data type:
Binary
Becomes
effective:
POWER ON
Axis and encoder bits related to safety functions.
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
High byte Reserved, these bits must be set to 0
0 0 0 0 0 0 0 0
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Low byte Reserved, these bits must be set to 0
0 0 0 0 0 0 Inch
system
Axis type
Bit 0 1: Rotary axis/spindle
0: Linear axis
Bit 1 1: Imperial system (inches etc.)
0: Metric system:
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