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Simatic/TI 505 Ethernet Driver Help
Element LVF bit Description
A 0/1, 15/16 1=Go to manual mode*
B 1/2, 14/15 1=Go to auto mode*
C 2/3, 13/14 1=Go to cascade mode*
D 3/4, 12/13 D E=description**
0 0=Loop is in manual mode
1 0=Loop is in auto mode
0 1=Loop is in cascade mode
E 4/5, 11/12
F 5/6, 10/11 0=Error is positive
1=Error is negative
G 6/7, 9/10 1=PV is in high-high alarm
H 7/8, 8/9 1=PV is in high alarm
I 8/9, 7/8 1=PV is in low alarm
J 9/10, 6/7 1=PV is in low-low alarm
K 10/11, 5/6 1=PV is in yellow deviation alarm
L 11/12, 4/5 1=PV is in orange deviation alarm
M 12/13, 3/4 1=PV is in rate-of-change alarm
N 13/14, 2/3 1=Broken transmitter alarm
O 14/15, 1/2 1=Loop is overrunning
P 15/16, 0/1 Spare: Set to 0
*Elements A, B and C are write-only triggers. Write 1 to set the mode. The element will always show a value of 0
(zero).
**Elements D and E will indicate the mode that the loop is in. These elements are read only.
Note: Elements F through P are read only and indicate the error and alarm state that the loop is in.
LCF Bit Definitions
Loop Control Flag Data Element Format
The server default settings are shown in bold.
MSB LSB
ABCD EFGH IJKL MNOP QRST UVWX YZab cdef
The LCF bit has the following format:
V/W, X/Y
V=0-based bit addressing. Bit 0 is MSB.
W=1-based bit addressing. Bit 1 is MSB (Simatic 505 documentation).
X=0-based bit addressing. Bit 0 is LSB.
Y=1-based bit addressing. Bit 1 is LSB.
Element LCF bit Description
A 0/1, 31/32 0=PV scale 0% offset
1=PV scale 20% offset - only valid if PV is unipolar. Refer to Element U.
B 1/2, 30/31 1=Take square root of PV
C 2/3, 29/30 1=Monitor HIGH/LOW alarms
D 3/4 28/29 1=Monitor HIGH-HIGH/LOW-LOW alarms
E 4/5, 27/28 1=Monitor yellow/orange deviation alarm
F 5/6, 26/27 1=Monitor rate-of-change alarm
G 6/7, 25/26 1=Monitor broken transmitter alarm
H 7/8, 24/25 PID algorithm type
0=Position algorithm
1=Velocity algorithm
I 8/9, 23/24 0=Direct acting
1=Reverse acting
J 9/10, 22/23 1=Control based on error squared
K 10/11,
21/22
1=Control based on error deadband
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27
- Simatic / TI 505 1
- Ethernet Driver Help 1
- Table of Contents 2
- Overview 3
- Device Setup 4
- Cable Diagrams 5
- Communications Parameters 5
- 505 Protocol 6
- CAMP vs. Packed Task Code 6
- Addressing Options 7
- Data Types Description 11
- Address Descriptions 12
- Addressing 12
- Common Data Type Addressing 12
- Array Support 14
- String Support 14
- Status Words 16
- Alarm Addressing 21
- AVF Bit Definitions 23
- ACF Bit Definitions 24
- Loop Addressing 25
- LVF Bit Definitions 26
- LCF Bit Definitions 27
- LRSF Bit Definitions 28
- Find Forced Addressing 29
- Find Forced Search Notes 30
- Examples 30
- Output Formats 30
- Possible Cause: 35
- Solution: 35
- Task Code Error Codes 36
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