Assignment Of The Feedback Interface - Siemens SIMATIC ST-1500 Function Manual

Using the module
5.1 Using the technology module
5.1.5.2

Assignment of the feedback interface

The user program receives current values and status information from the technology
module via the feedback interface.
Feedback interface per channel
The following table shows the assignment of the feedback interface:
Byte offset from Parameter
start address
0 ... 3 COUNT_VALUE
4 ... 7 CAPTURED_VALUE
8 ... 11 MEASURED_VALUE
12 –
LD_ERROR
ENC_ERROR
POWER_ERROR
13 –
STS_SW_GATE
STS_READY
LD_STS_SLOT_1
LD_STS_SLOT_0
RES_EVENT_ACK
–
14 STS_DI2
STS_DI1
STS_DI0
STS_DQ1
STS_DQ0
STS_GATE
STS_CNT
STS_DIR
15 STS_M_INTERVAL
EVENT_CAP
EVENT_SYNC
EVENT_CMP1
EVENT_CMP0
EVENT_OFLW
EVENT_UFLW
EVENT_ZERO
188
Meaning
DINT: Current counter value or position value
DINT: The last acquired Capture value
REAL: Current measured value or DWORD: Full SSI frame
Bits 3 to 7: Reserve; set to 0
Bit 2: Error when loading via control interface
Bit 1: Faulty encoder signal or SSI frame
Bit 0: S7-1500 module: Incorrect supply voltage L+ / ET 200SP module:
Supply voltage L+ too low
Bits 6 to 7: Reserve; set to 0
Bit 5: Software gate status (with incremental or pulse encoder)
Bit 4: Technology module started up and configured
Bit 3: Load request for Slot 1 detected and executed (toggling)
Bit 2: Load request for Slot 0 detected and executed (toggling)
Bit 1: Reset of event bits active
Bit 0: Reserve; set to 0
Bit 7: TM Count: Status DI2 / TM PosInput, Compact CPU: Reserve; set to 0
Bit 6: Status DI1
Bit 5: Status DI0
Bit 4: Status DQ1
Bit 3: Status DQ0
Bit 2: Internal gate status (with incremental or pulse encoder)
Bit 1: Count pulse or position value change detected within the last ca. 0.5 s
Bit 0: Direction of last counter value or position value change
Bit 7: Count pulse or position value change detected in previous measure-
ment interval
Bit 6: Capture event occurred
Bit 5: Synchronization has occurred (with incremental or pulse encoder)
Bit 4: Comparison event for DQ1 has occurred
Bit 3: Comparison event for DQ0 has occurred
Bit 2: An overflow has occurred
Bit 1: An underflow has occurred
Bit 0: A zero pass has occurred
Counting, measurement and position detection
Function Manual, 12/2017, A5E32009889-AG