Description of Functions
9-6
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
9.1.2
Checkback signals
Overview
The checkback signals indicate the processing status of the axis and report it to
the user program.
Table 9-2 describes the checkback signals and their functions.
Table 9-2
Checkback signals
Symbol
English
Ger-
man
Significance
Function
TST_STAT
TFGS
Sw./over P
bus interface
complete
Communication with the user program is not possible, since the
P bus interface has been switched over for operation with the
start-up tool.
OT_ERR
BF/FS
Operator/
travel errors
... signaled to the user if an operator-control error or travel error is
pending (e.g., unallowed control signal has been set, (R+) and
(R
−
) set simultaneously) An error message causes the move-
ment to be canceled.
See Section 11
DATA_ERR
DF
Data error
... is reported to the user when a data error occurs.
see Section 11
PARA
PARA
Parameterize ... module parameterized. All machine data applicable for control
of an axis are present on the module.
ST_ENBLD
SFG
Start enable
... signals that the FM 353 is ready for positioning and output.
S
“Start enable” is set:
−
if no static stop or error is pending and the drive enable is
pending
−
if the mode setting and mode checkback match (after
mode change)
−
if no axis functions (including M output, dwell time) are
active, or after functions have been completed
−
for further processing of a function interrupted with unpro-
grammed stop
−
in Automatic mode, after program has been selected (one
program active) and after M0, M2, M30, or at end of block
with Automatic single-block
S
“Start enable” is deleted:
−
if a function has been started and is active, or
−
if a start condition is active (stat.)
−
if there is an error and an unprogrammed stop
S
Without Enable Start, none of the functions that can be oper-
ated with Travel Plus, Travel Minus and Start can be exe-
cuted.
Summary of Contents for SIMATIC FM 353
Page 22: ...Product Overview 1 12 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...
Page 32: ...Installing and Removing 3 6 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...
Page 282: ...Description of Functions 9 82 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...
Page 354: ...User Data Block AW DB B 16 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...