Meanings Of The Block Parameters Of The Fb Im308C - Siemens SIMATIC S5 Manual

IM 308-C – addressing, diagnostics and use of the FB IM308C
Table 9-22 Meanings of the block parameters of the FB IM308C
Name Mode Type
DPAD D KH Address area of the
IM 308-C (DP IM 308-C (DP
Window Address)
IMST D KY Number of the
IM 308 C Station IM 308-C, Station
number of the DP
slave
FCT D KC Function of the
FB IM308C (for
details, see Table
9-15)
GCGR D KM Control commands
(Global Control) (Global Control),
Group selection (for
details see Table
9-18)
TYP D KY Type of STEP 5
memory area memory area
STAD D KF Start of STEP 5
memory Address memory Address
area
LENG D KF Number of bytes to
be transferred be transferred
(Length)
ERR A W Error word
1
Do not change the default setting of the "DPAD" parameter unless you selected "Multiprocessor mode" in the master
parameters under COM ET 200 Windows and changed the address of the DP window to a value other than F800.
2
Do not use smudge markers (MB 200 to MB 255) .
3
The area to be transferred must be entirely within the permissible area or data block.
4
For the joker length, the FB IM308C transfers all permissible bytes. If the source or target area is not long enough, the
FB IM308C does not transfer data and outputs an error message in the ERR parameter.
5
The data word is in the data block opened before the FB IM308C was called. If this data block does not exist, the
programmable controller goes to STOP.
9-38
Designation
KH =F800; (default)
KY = x, y;
x: Number of the IM 308-C (see Section 9.1.2)
x = 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, ..., 240;
y: Station number of the DP slave
y = 1 ... 123 (if FCT = WO, RO, RI, SD)
y = 1 ... 126 (if FCT = CS)
y = irrelevant (if FCT = MD, GC, CC)
WO = Write outputs
RI = Read inputs
MD = Read master diagnostics
GC = Global control (control command)
CC = Check global control (check control command)
CS = Change station number
XX = Switch to indirect parameterization
KM = xxxxxxxx yyyyyyyy; (relevant only if FCT = GC, CC)
xxxxxxxx: Choice of control command
p (
yyyyyyyy: Choice of DP slaves as target group for control
command
KY = x, y;
x = 0: Data block DB
x = 1: Extended data block DX
x = 2: Marker area M
x = 3: Extended marker area S
y = 10 to 255; DB or DX number (relevant only if x = 0 or x = 1)
KF = +x;
x: Number of the first data word (if TYP: x = 0 or x = 1)
x: First marker byte
KF = +x;
x: Number of bytes for transfer
if FCT
if FCT = CS: x = 4 to 244
marker, output or data word
Permissible assignment
1
RO = Read outputs
SD = Read slave diagnostics
2
(if TYP: x = 2 or x = 3)
3
CS: x = 1 to 244 or x = –1 ; joker length
5
ET 200 Distributed I/O System
4
EWA 4NEB 780 6000-02a