Hello,
Can anybody help me out on coding in S7-200?
For example: LD gap_check_right:I5.2
A gap_check_left:I5.3
= load_handler_central:V8.0
But what does this V8.0 means??? Can somebody tell me, thanks!
greetz
[?]: Can anybody help me out on coding in S7-200?
Accessing Data in the Memory Areas
Process-Image Input Register: I
The S7-200 samples the physical input points at the beginning of each scan cycle and writes
these values to the process-image input register. You can access the process-image input register
in bits, bytes, words, or double words:
Bit: I[byte address ].[bit address ] --> example I0.1
Byte, Word, or Double Word: I[size ][starting byte address ] --> example IB4
Process-Image Output Register: Q
At the end of the scan cycle, the S7-200 copies the values stored in the process-image output
register to the physical output points. You can access the process-image output register in bits,
bytes, words, or double words:
Bit: Q[byte address ].[bit address ] --> example Q1.1
Byte, Word, or Double Word: Q[size ][starting byte address ] --> example QB5
Variable Memory Area: V
You can use V memory to store intermediate results of operations being performed by the control
logic in your program. You can also use V memory to store other data pertaining to your process
or task. You can access the V memory area in bits, bytes, words, or double words:
Bit: V[byte address ].[bit address ] --> example V10.2
Byte, Word, or Double Word: V[size ][starting byte address ] --> example VW100
Bit Memory Area: M
You can use the bit memory area (M memory) as control relays to store the intermediate status of
an operation or other control information. You can access the bit memory area in bits, bytes,
words, or double words:
Bit: M[byte address ].[bit address ] --> example M26.7
Byte, Word, or Double Word: M[size ][starting byte address ] --> example MD20
bye
Process-Image Input Register: I
The S7-200 samples the physical input points at the beginning of each scan cycle and writes
these values to the process-image input register. You can access the process-image input register
in bits, bytes, words, or double words:
Bit: I[byte address ].[bit address ] --> example I0.1
Byte, Word, or Double Word: I[size ][starting byte address ] --> example IB4
Process-Image Output Register: Q
At the end of the scan cycle, the S7-200 copies the values stored in the process-image output
register to the physical output points. You can access the process-image output register in bits,
bytes, words, or double words:
Bit: Q[byte address ].[bit address ] --> example Q1.1
Byte, Word, or Double Word: Q[size ][starting byte address ] --> example QB5
Variable Memory Area: V
You can use V memory to store intermediate results of operations being performed by the control
logic in your program. You can also use V memory to store other data pertaining to your process
or task. You can access the V memory area in bits, bytes, words, or double words:
Bit: V[byte address ].[bit address ] --> example V10.2
Byte, Word, or Double Word: V[size ][starting byte address ] --> example VW100
Bit Memory Area: M
You can use the bit memory area (M memory) as control relays to store the intermediate status of
an operation or other control information. You can access the bit memory area in bits, bytes,
words, or double words:
Bit: M[byte address ].[bit address ] --> example M26.7
Byte, Word, or Double Word: M[size ][starting byte address ] --> example MD20
bye
Variabel Memory Area
Hi zzz-zzz,
So I suppose it's more or less like a Memory Byte?
greetz
Maxime
So I suppose it's more or less like a Memory Byte?
greetz
Maxime
they are always memory ,
in the plc 200 you have a lot of memories v and few memories m .
---------------------------------------------------
WORD OPERATION :
LD I0.0
TON T37, VW200
the word value in the vw200 load the timer t37
---------------------------------------------------
BIT OPERATION :
LD I0.0
A I0.1
= M10.0
if you want more control relays to store the intermediate status of an operation , memory v is used as a memory m
LD I0.0
A I0.1
= V1234.5
good luck from the south of the world ....
in the plc 200 you have a lot of memories v and few memories m .
---------------------------------------------------
WORD OPERATION :
LD I0.0
TON T37, VW200
the word value in the vw200 load the timer t37
---------------------------------------------------
BIT OPERATION :
LD I0.0
A I0.1
= M10.0
if you want more control relays to store the intermediate status of an operation , memory v is used as a memory m
LD I0.0
A I0.1
= V1234.5
good luck from the south of the world ....
Bit of word memory in S7 200 using MicroWIN?
I want to know how to express bit of word memory in S7 200 using MicroWIN?
I know in Simatic Manager we could use such as DB10.DBW20, we could use bit of this word using DB10.DBX20.1
I know in Simatic Manager we could use such as DB10.DBW20, we could use bit of this word using DB10.DBX20.1
