| statements: | LOCAL |
| range: | 1–255 |
Specifies the number of IO buffers to be read from devices that are not properly emulating 3x74 type devices. BUFNUM helps ensure that the screen is fully read when VTAM® issues READ and READ modifies to the device.
BUFNUM should be set so that BUFNUM*IOBUF_size is large enough to get all of the data from a screen.