Control Data 3170 Installation Handbook page 213

4.2.1 DEV
DEV statements define equipment available to IUP and assign logical unit numbers. The
first statement entered must be a DEV statement. Otherwise, an error occurs. It is
good practice to enter all DEV statements first because some operational control state-
ments may cause device drivers of unequipped devices to be destroyed.
IU P allows up to 63 devices to be equipped.
Card input:
DEV, lun, ht, c, e, uu,
{~~t}
, [
C]"
Typewriter input:
DEV LUN lun HT ht C c E e UU uu {griT
d~dt}
, [CLR
{~J ]
lun Logical unit number, 1
<
lun
<
63; unique for each equipment entered.
lII-4-2
All references to the device are in terms of the logical unit number.
ht Hardware type
MT Magnetic tape
DP Disk pack
CP Card punch
C R Card reader
TY Console typewriter
PR Printer
DR Drum
DF Disk file
c Channel number
e Equipment number of controller
u Unit number
dt Unit device type if hardware type is MT, PR, DP, DF, or DR
cdt Controller device type
if
hardware type is CR or CP
C Write zeros on mass storage device (card format)
CLR
Write zeros on mass storage device (typewriter request). Respond Y
for yes, N for no.
60410800 A