Toshiba T2N - Manual (Page 166)

3.User Data
User's manual 153
Codes
Direct input registers ... IW
Direct input devices ... I
Addresses
Direct input registers ... 000-127 (correspond to input registers (XW))
Direct input devices ... 0000-127F (correspond to input devices (X))
Functions
Direct input registers/direct input devices do not themselves indicate
specific memories. When the instruction word which uses these
registers/ devices is executed, they operate and read data directly from
the input module corresponding to the address. These registers/devices
are used when using the T2N by the direct input/output system (direct
system) and not the batch input/output system (refresh system).
Example)
I0000
NO contact instruction of I0000
When executing the instruction, the bit data corresponding to X0000 is
read from the input module corresponding to XW000, and the
instruction is executed by this data. (The X0000 data is not affected)
–[ IW005 MOV RW100 ]– Transfer instruction from IW005 to RW100
When executing the instruction, the word data corresponding to XW005
is read from the input module corresponding to XW005 and is
transferred to RW100.
(The XW005 data is not affected)
Codes
Direct output registers ... OW
Direct output devices ... O
Addresses
Direct input registers ... 000-127 (correspond to input registers (YW))
Direct input devices ... 0000-127F (correspond to input devices (Y))
Functions
When instructions are executed using direct output registers/direct
output devices, data is stored in the corresponding output
registers/output devices (YW/Y). Then, this output register (YW) data is
written directly to the corresponding output module. These
registers/devices are used when using the T2N by the direct
input/output system (direct system) and not the batch intput/output
system (refresh system).
Example)
O0020
Coil O0020
When the instruction is executed, the data (ON/OFF data)
corresponding to the left link state is stored in Y0020. Then the 16-bit
data of YW002 is written to the corresponding output module.
Direct Input Registers
and Direct Input Devices
Direct Output Registers
and Direct Output Devices