I/o allocation, User's manual, Manual i/o allocation – Toshiba T2N User Manual

Page 208

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User's manual

195

4. I/O Allocation

This is the method by which the user edits the input/output allocation
information on the I/O allocation information screen of the programmer
(T-PDS) and writes it to the T2N. The manual I/O allocation is used in
the following cases.

* When carrying out programming in a status in which the I/O modules

are not fully mounted

* When it is desired to remove a special module from the the subjects of

batch input/output

* When using the starting address setting function
* When allocating a specified number of registers to slot left vacant for

future addition

* When carrying out off-line programming
* When using a serial interface module which requires iX +Y 4W

For manual I/O allocation, module types are set for each slot. The
module types which can be set at this time are as shown below. Module
types are expressed by combinations of function classifications and
numbers of registers occupied. (except for MMR, TL-S, TL-F and OPT)

(1)

Allocations to input/output modules are:- X and iX to input
modules, Y and iY to output modules and X+Y and iX+Y to input/
output mixed modules. The input/output registers which
correspond to modules with the designation i attached are not
included in batch input/output subjects.

(2)

SP is used when allocating an arbitrary number of registers to a
vacant slot.

(3)

MMR is not used in the T2N.

(4)

The TOSLINE-S20 modules are allocated as TL-S, but the T2N
CPU does not exchange data automatically.
Use READ/WRITE instruction to access data.

(5)

TL-F is allocated to data transfer device TOSLINE-F10.

(6)

Z is allocated to data transfer device TOSLINE-30.

Manual I/O Allocation

Function Classification

Number of Registers Occupied

Remarks

X

01, 02, 04,08

Input (batch input/output subject)

Y

01, 02, 04, 08

Output (batch input/output
subject)

X + Y

02, 04, 08

Input + output (batch input/output
subject)

iX

01, 02, 04, 08

Input (other than batch
input/output subject)

iY

01, 02, 04, 08

Output (other than batch
input/output subject)

iX + Y

02, 04, 08

Input + output (other than batch
input/output subject)

Z

08, 16, 32

When TOSLINE-30 used

SP

01, 02, 04, 08

Space

MMR

Memory type (not used)

TL-S

For TOSLINE-S20

TL-F

For TOSLINE-F10

OPT

Option type

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