Modes Of Addressing With The Im 308-C As Dp Master - Siemens SIMATIC S5 Manual

IM 308-C – addressing, diagnostics and use of the FB IM308C
Options for
addressing
Table 9-1 Modes of addressing with the IM 308-C as DP master
Addressing Address
1
range
Linear (F)F000 to
H
P area (F)F0FF
H
Linear (F)F100 to
H
Q area (F)F1FF
H
P page (F)F0C0 to
H
(F)F0FE
H
Q page (F)F100 to
H
(F)F1FE
H
DP window (F)F800 to
H
(F)F9FF (de-
H
fault)
(F)FA00 to
H
(F)FBFF
H
(F)FC00 to
H
(F)FDFF
H
(F)FE00 to
H
(F)FFFF **
H
** S5-135U and S5-155U only.
1
Column indicates the address area of the IM 308-C for addressing. In the 945, 946/947 and 948 CPUs, this address
is on memory page F.
2
The 13300 bytes represent the maximum addressing volume – even if you use linear and page addressing in parallel.
9-4
Your options for addressing the distributed I/O system are as follows:
linear addressing (P and Q areas)
page addressing (P and Q areas)
or
function block FB IM308C (FB 192).
Table 9-1 shows the inputs and outputs at your disposal and the applicable
modes of addressing.
Access Page
through ... selection
address
PY 0 to –
PY 255
QB 0 to –
QB 255
PY 192 to PY 255 /
PY 254 (F)F0FF
QB 0 to QB 255 /
QB 254 (F)F1FF
FB IM308C –
(FB 192)
Max.
inputs / outputs
256 bytes for inputs / If an output can be
256 bytes for outputs addressed in linear mode,
it it cannot be addressed
256 bytes for inputs /
through the FB IM308C.
256 bytes for outputs
per IM 308-C: If an output is addressed
16 pages, 63 bytes = through pages, it cannot
1008 bytes for inputs / be addressed through the
1008 bytes for outputs FB IM308C. Station
numbers 120 through 123
max. 16 IM 308-C:
are not available
16128 bytes / 16128
bytes
per IM 308-C: If an output is addressed
16 pages, 255 bytes = through pages, it cannot
4080 bytes for inputs / be addressed through the
4080 bytes for outputs FB IM308C. Station
numbers 120 through 123
max. 16 IM 308-C:
are not available
65280 bytes / 65280
bytes
13300 bytes in all for in- –
2
puts and outputs.
ET 200 Distributed I/O System
Restrictions
t b dd d
EWA 4NEB 780 6000-02a