Specifications

SIMATIC Instructions
9-179
S7-200 Programmable Controller System Manual
C79000-G7076-C233-01
The receive and transmit buffers for accessing the data in station 2 (located at
VB200 and VB300, respectively) are shown in detail in Figure 9-69.
The CPU 224 uses a NETR instruction to read the control and status information
on a continuous basis from each of the case packers. Each time a case packer
has packed 100 cases, the diverter notes this and sends a message to clear the
status word using a NETW instruction.
The program required to read the control byte, the number of cases packed and to
reset the number of cases packed for a single case packer (case packer #1) is
shown in Figure 9-70.
Remote station address
Pointer to the
data area
in the
Remote station = (&VB100)
Data length = 3 bytes
Control
Status (LSB)
D A E 0 Error code
70
VB200
VB201
VB202
VB203
VB204
VB205
VB206
VB207
VB208 Status (MSB)
Diverter’s Receive Buffer
for reading from Case Packer #1
Diverter’s Transmit Buffer
for clearing the count of Case Packer #1
VB209
Remote station address
Pointer to the
data area
in the
Remote station = (&VB101)
Data length = 2 bytes
0
D A E 0 Error Code
70
VB300
VB301
VB302
VB303
VB304
VB305
VB306
VB307
VB308
0
Figure 9-69 Sample TABLE Data for NETR and NETW Example