Toshiba T2N - Manual (Page 165)

3. User Data
152 PROSEC T2N
The following Tables describe the functions and address ranges for each
function type of registers and devices.
Codes Input registers... XW
Input devices ... X
Addresses Input registers... 000-127 (128 words)
Input devices ... 0000-127F (2048 points)
Functions These are allocated in the input module as register units (word units) by
performing input/output allocation. The signal state inputted to the input
module is stored in the corresponding input register by batch
input/output timing (except for modules which have the designation i
attached when allocating). An input device expresses 1 bit of the
corresponding input register.
The data of input registers/input devices basically do not change during
1 scan. However, when executing a direct I/O instruction (FUN235),
data is read from the corresponding input module when the instruction
is executed and is stored in an input register/input device (XW/X). Thus,
the data changes during the scan.
Codes Output registers ... YW
Output devices ... Y
Addresses Output registers ... 000-127 (128 words)
Output devices ... 0000-127F (2048 points)
Functions These are allocated in the output module as register units (word units)
by performing input/output allocation. The data stored in the output
register is written to the corresponding output module by batch
input/output timing, and the state of the output signal of the output
module is determined (except for modules which have the designation i
attached when allocating). An output device expresses 1 bit of an
output register.
3.2
Registers and Devices
Output Registers and
Output Devices
Input Registers and
Input Devices
}
Common use as output
registers/output devices
}
Common use as output
registers/output devices