Hardware Information
Release 11/02
7-31
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Pin No.
Signal Name
Type
*
Pin No.
Short
Name
Type
C1
SBHE#
O
D1
MEMCS16#
I
C2
LA 23
I/O
D2
IOCS16#
I
C3
LA 22
I/O
D3
IRQ 10
I
C4
LA 21
I/O
D4
IRQ 11
I
C5
LA 20
I/O
D5
IRQ 12
I
C6
LA 19
I/O
D6
IRQ 13
I
C7
LA 18
I/O
D7
IRQ 14
I
C8
LA 17
I/O
D8
DACK0#
O
C9
–MEMR#
I/O
D9
DRQ 0
I
C10
–MEMW#
I/O
D10
DACK5#
O
C11
SD 08
I/O
D11
DRQ 5
I
C12
SD 09
I/O
D12
DACK6#
O
C13
SD 10
I/O
D13
DRQ 6
I
C14
SD 11
I/O
D14
DACK7#
O
C15
SD 12
I/O
D15
DRQ 7
I
C16
SD 13
I/O
D16
5 V
V
CC
C17
SD 14
I/O
D17
MASTER#
I
C18
SD 15
I/O
D18
0 V
GND
#
low active
Under normal conditions, the signals –SBHE, LA17 – LA23, –MEMR and MEMW
are operated as outputs (sending from CPU). Only CPU modules that are suitable
for use as a master CPU for system bus access send and receive these signals. A
minus sign, ”–”, in front of the signal name shows that the signal is LOW active.
Summary of Contents for Simatic PC Panel PC 870
Page 4: ...Chapter For your notes ...
Page 12: ...Contents Release 11 02 xii SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 94: ...Fault Diagnosis Release 11 02 6 10 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 130: ...Hardware Information Release 11 02 7 36 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 154: ...Index Release 11 02 Index 4 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...