OMMBRRSS o 7- To provide additional information for punch records o MM B
RR SS ------- OMMBRRRR o 7
1 00 01 10 11
o
1 00 NN SCB count units = 1 SCB count units = 2 SCB count units = 4 Reserved
EBCDIC card i.age
Column binary card image Reserved
Stacker select information Q§gg§: To provide additional information for input records o MM B
RRRR
------- OTTTTTTT o 7
1 00 01 10 11 0 1 0000 SCB count units = 1 SCB count units = 2 SCB count units = 4 Reserved
EBCDIC card image
Column binary image Reserved To indicate the destination of a terminal message !!i1§: o
TTTTTTT
1 0000000 NNNBNNN Broadcase to all remote systems Remote system number (1-99) or
remote system group (100-127) 354 IBM VM/370 System programmer's Guide

STRING CONTROL BYTE (SCB) OKLJJJJJ
o 1 Control field for data character strings Bi1§: OKLJJJJJ
--or-­
OKLJJJJJ
--or-­
o
K
L
JJJJJ
--or-­
o
K
LJJJJJ 00000000 10000000 1
o
o
1
NNNNN
1
1 NNNNN End of record
Record is continued in next
transmission block
Non-EOR SCB Duplicate character string
Duplicate character is blank
Duplicate character is nonblank
and follows SCB Duplicate count
Non-EOR SCB Nonduplicate character string
Character string length
Note: Count units are normally 1 but may be in any other units. the units used may be indicated at function control sign-on or dynamically
in the SRCB. BLOCK CONTROL BYTE (BCB) OXXXCCCC o 1 transmission block status and sequence count o
xxx
CCCC
1 000 001 010 011 100 101
110
111
NNNN
Reserved
Bypass sequence count validation
Reset expected block sequence count
to CCCC
Reserved
Reserved
Available to user
Available to user
Reserved
Module 16 block sequence count
Appendix B: MULTI-LEAVING 355