AM3270 and TR3271 Configuration and Management Manual

3174 Device Status/Sense Bytes
AM3270 and TR3271 Configuration and Management Manual—529993-001
G-2
Description of Device Status/Sense Bytes
7. Intervention Required (IR) indicates one of the following:
•
A command attempted to start a printer but found it not ready, so the printout is
suppressed.
•
The 3174 has received a command for a device that has been logged as
unavailable.
•
The 3174 has received an addressing or poll sequence for a device that is
unavailable during a printout.
•
A command tried to start a printer but found it not ready, so the printout is
suppressed.
8. Operation Check (OC) indicates one of the following:
•
The receipt of an illegal buffer address or an incomplete order sequence.
•
The device did not receive a CCC or a from address on a copy command.
•
The receipt of an invalid command sequence.
•
The internal buffering capability is exceeded on a 3174.
9. Transmission Check (TC) indicates that there is a communications problem. This
usually occurs on the physical line.
10. Unit Specify (US) indicates a device-detected error. US may also indicate that a
command has been addressed to a busy device.
Table G-1. AM3270 and TR3271 Device Status (page1of2)
Sense/Status
Bits Octal Number EBCDIC Hex ASCII Hex
File-System
Error Number
CR 040140 40 60 20 2D 179
OC 73010 40 C1 20 41 179
OC, US 142301 C4 C1 44 41 179
CC 40302 40 C2 20 42 179
IR 40120 40 50 20 26 100
Status Byte
Bit 4 - DB Device Busy
5 - US Unit Specify
6 - DE Device End
7 - TC Transmission Check
Sense Byte
Bit 2 - CR Command Reject
3 - IR Intervention Required
4 - EC Equipment Check
5 - DC Data Check
6 - CC Control Check
7 - OC Operation Check