IO-PCB Mask
The following shows the IO-PCB fields that IBM mainframe’s IMS/DC provides. It includes the length of the field and the availability of OSI products.
| Descriptor | Length (Bytes) | Availability |
|---|---|---|
Logical terminal name |
8 |
Available |
Reserved for IMS |
2 |
Available |
Status code |
2 |
Available |
Local date and time |
4 (Date) + 4 (Time) |
Available |
Input message sequence number |
4 |
Not Available |
Message output descriptor name |
8 |
Available |
Userid |
8 |
Not Available |
Group name |
8 |
Not Available |
Time Stamp |
4 (Date) + 6 (Time6) + 2 (UTC Offset) |
Available |
Userid Indicator |
1 |
Not Available |
Reserved for IMS |
3 |
Available |