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B.19 Program Check Codes

Program Check codes indicate protocol or data stream errors detected by the 3270 emulation program. They appear on the 3270 status line as

PROGnnn
messages, where
nnn
is defined as follows:

Program Check Codes

NumberDescription
401

Invalid command received or invalid alias for SFE, MF, or SA

402

Out of range address for SEA, RA, or EUA order

MF order addressed non-field attribute location

403

Data stream data after Rd, Rd Mod, EAU command

Invalid parameter following SFE, MF, SA, GE, or RA order

404 Data stream terminated before end of order
413 Function not supported
422 New response chains not allowed
423 FI bit not allowed for function management (FM) data
430 Sequence number error
431 Chaining error
432 Bracket error
433 Data traffic reset
434 Direction error
442 Request not executable
443 Change direction (CD) required
445 Activate LU (ACTLU) type not COLD or error recovery procedure (ERP) -internal error
470 Unsupported code point received
471 Extended data stream function not supported
472 Read state error
474 The device does not support extended data stream
475 WCC had "Start Print" but not last structured field
498 Negative response received
499 An internal error occurred; see the error log file for details

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