Assignment Of The Feedback Interface - Siemens Simatic ET 200SP Equipment Manual

4.11.2

Assignment of the feedback interface

Your safety program receives current values and status information from the F-TM Count
module by means of the feedback interface.
Feedback interface
The following table shows the assignment of the feedback interface:
Byte Bit 7
0 Reset Safe
Direction
Status
1 Reserved
2...5
6...9
Explanations
Byte Bit Feedback bit/value
0 0 Direction Status
0 1 Count Status
0 2 Set Start Value Status
0 3 Reset Other Events Status
ET 200SP F-TM Count 1x1Vpp sin/cos HF (6ES7136-6CB00-0CA0)
Equipment Manual, V1.0, 01/2021, A5E47073911-AA
Bit 6 Bit 5
Reset Safe SW Gate
Stop Status Status
Safe Direc- Safe Stop
tion Event Event
High Speed Counter 0 - Current Value
Value range: –2147483648 to 2147483647
High Speed Counter 0 - Measured Value
Measured Value as a scaled DINT
Explanations
The "Direction Status" bit reflects the direction of the last movement.
•
•
After power-up, the "Direction Status" bit resets to 0 and reinitializes to
the actual state upon the next movement.
The "Count Status" bit reflects the current counting status.
•
•
The "Set Start Value Status" bit is used to acknowledge that the module
has received and reacted to the "Set Start Value" bit from the control
interface as follows:
•
•
The "Reset Other Events Status" bit is used to acknowledge that the
module has received and reacted to the "Reset Other Events" bit from
the control interface as follows:
•
•
Bit 4 Bit 3
Reset Safe Reset Other
Speed Sta- Events Sta-
tus tus
Safe Speed Overflow
Event Event
DINT: Current counter value
or 80000000 to 7FFFFFFF
D
0: Last count was down
1: Last count was up
0: No counts in the previous 500 ms
1: At least one count received in the previous 500 ms
When the "Set Start Value" bit is set to 1, the module sets the count
value to the start value, then sets the "Set Start Value Status" bit to 1
When the "Set Start Value" bit is set to 0, the "Set Start Value Status"
bit is also set to 0
When the "Reset Other Events" bit is set to 1, the module resets the
"Overflow Event", "Underflow Event", and "Zero Event" bits, then the
"Reset Other Events Status" bit is set to 1
When the "Reset Other Events" bit is set to 0, the "Reset Other Events
Status" bit is set to 0
Parameters/address space
4.11 Control and feedback interface
Bit 2 Bit 1
Set Start Count
Value Status
Status
Underflow Zero Event
Event
H
Bit 0
Direction
Status
CQ HSC0
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