DCS 300 User’s Manual
8-22
Communicating With APPC Applications
You can use
APPC
applications to communicate between the DCS 300 and any other
device on an SNA network. Before you write
APPC
applications, you should have some
familiarity with
APPC/LU
6.2 because
APPC
applications use
APPC/LU
6.2 verbs to
communicate with the DCS 300.
APPC applications, acting as remote requester applications, initiate the connection to
the DCS 300. The DCS 300 waits for the connection to be initiated. The remote
applications can be receive, send, interactive, or batch applications.
Receive applications
Receive applications only receive data. A receive application
must act as a receive requester. It must send the DCS 300 a valid application name
when it connects. The application name must be identical to the name configured for it
in the DCS 300.
Send applications
Send applications only send data. A send application must act as a
send requester. It can send transactions to the DCS 300 without being configured in the
DCS 300 because the DCS 300 will never send anything to it. The source application
ID field in the transaction header is always blank.
Note:
The DCS 300’s
APPC
receive NetComms only receive data in a maximum of
1120 byte chunks (96 bytes transaction 1024 bytes data). If more than 1120
bytes are received, an error is reported.
Interactive applications
A typical interactive application consists of the application, a
send connect, and a receive connect.
Batch applications
Batch applications are requester applications that receive batched
data from the DCS 300. This data is collected while the application is not active and is
stored in the Hot Standby file. The batch NetComm takes the Hot Standby file and
sends the data upline faster than the normal interactive retrieval of data. Batch
applications are ideal for applications that collect data only periodically and do not
need to remain interactive. Batch applications are never interactive; they merely collect
data.
Summary of Contents for DCS 300
Page 1: ...P N 067296 005 User s Manual DCS300 ...
Page 4: ...DCS 300 User s Manual blank ...
Page 16: ...DCS 300 User s Manual ...
Page 22: ...DCS 300 User s Manual ...
Page 23: ...Getting Started 1 ...
Page 24: ...DCS 300 System Manual blank ...
Page 42: ...blank ...
Page 43: ...Learning About the DCS 300 2 ...
Page 44: ...DCS 300 User s Manual blank ...
Page 68: ...blank ...
Page 69: ...Connecting to the Upline Network 3 ...
Page 70: ...DCS 300 System Manual 3 2 blank ...
Page 94: ...blank ...
Page 95: ...Connecting to the Intermec RF Network 4 ...
Page 96: ...DCS 300 System Manual blank ...
Page 134: ...blank ...
Page 135: ...Connecting to the 9180 and the Intermec CrossBar Network 5 ...
Page 136: ...DCS 300 System Manual blank blank ...
Page 158: ...DCS 300 System Manual blank ...
Page 159: ...Running Data Collection Browser 6 ...
Page 160: ...DCS 300 System Manual blank ...
Page 171: ...Running Terminal Emulation 7 ...
Page 172: ...DCS 300 System Manual blank ...
Page 209: ...Running Peer to Peer Applications 8 ...
Page 210: ...DCS 300 System Manual blank ...
Page 232: ...blank ...
Page 233: ...Running Terminal Sessions 9 ...
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Page 258: ...DCS 300 System Manual 9 26 blank ...
Page 259: ...Running Screen Mapping 10 ...
Page 260: ...DCS 300 System Manual 10 2 blank ...
Page 269: ...Running Screen Mapping 10 11 10 Screen 3 Screen 4 Main Host Screen Screen 5 ...
Page 333: ...Troubleshooting 11 ...
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Page 372: ...blank ...
Page 373: ...Specifications and Other Helpful Information A ...
Page 374: ...DCS 300 System Manual B 2 blank ...
Page 391: ...Upgrading the DCS 300 and Devices B ...
Page 392: ...DCS 300 System Manual blank ...
Page 411: ...How the DCS 300 Routes Transactions C ...
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Page 430: ...blank ...
Page 431: ...Index I ...
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