| statements: | PU |
| dependencies: | CPNAME; IDNUM |
| range: | X'001'–X'FFE' |
Specifies a 3-digit hexadecimal number that identifies the device type. You can get the number from the component description manual for the device. All devices of the same type, such as all 3274s, will have the same IDBLK.
Valid values are X'001'–X'FFE'. Note that if the value is X'nnn', you code IDBLK=nnn. The IDBLK number occupies bits 16–27 of the 48-bit station ID constructed by VTAM® for switched network operation. See the IDNUM operand for a description of the station ID.
You should not code IDBLK for switched subarea connections (type 4 and 5 physical units).
- If the node is not a type 2.1 peripheral node, you must code both IDBLK and IDNUM.
- For a type 2.1 peripheral node, coding CPNAME is required if the
peripheral node supports role negotiation (such as 3172, 3174, and
Communications Manager).
For external communication adapter type 2.1 peripheral nodes, you must code CPNAME. IDBLK and IDNUM are ignored if you code them.
For an APPN connection, if you code IDBLK and IDNUM, code DYNADJCP=YES instead of CPNAME.
- If VTAM is defined as a type 2.1 node, you must code CPNAME.
- See the appropriate product manual for CPNAME and IDNUM and IDBLK values.