Siemens Sinumerik 840D sl Function Manual page 616

Diagnostics
10.1 Troubleshooting procedure
Figure 10-25 Checksum SI
A table is displayed in which the global checksums are listed with the calculation
date.
When the dialog is first displayed, the cursor is positioned at the first line with a
checksum. The cursor is only positioned to lines that contain a checksum.
The global checksums are calculated as follows:
Table 10-1 Global checksums
Global safety engineering
checksum
(sum of all master check-
sums)
10-616
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Master checksum
NC master checksum
Axis master checksum
Drive master checksum
Calculated by adding the listed data
SAFE.SPF checksum
$MN_SAFE_GLOB_ACT_CHECKSUM[0]
$MN_SAFE_GLOB_ACT_CHECKSUM[1]
$MN_SAFE_GLOB_ACT_CHECKSUM[2]
$MN_SAFE_GLOB_ACT_CHECKSUM[3]
$MA_SAFE_ACT_CHECKSUM[0]
$MA_SAFE_ACT_CHECKSUM[2]
(Sum across all axes with
$MA_SAFE_FUNCTION_ENABLE.0==1)
r9728[0]
r9728[1]
(Sum across all drives, that are assigned to an axis
with $MA_SAFE_FUNCTION_ENABLE.0==1)
© Siemens AG 2015 All Rights Reserved
10/15