Omron SYSMAC CS1W-CLK13 Operation Manual page 341

Memory Areas
CPU Bus Error and Unit Flags
Bit A40112 is turned ON when an error occurs during the transmission of data between the CPU Unit and CPU
Bus Units, or a WDT (watchdog timer) error occurs in a CPU Bus Unit. The unit number of the CPU Bus Unit
involved is contained in word A405.
Bits A40500 through A40515 correspond to CPU Bus Units #0 through #15, respectively. When a CPU Bus
Error occurs, the bit corresponding to the unit number of the CPU Bus Unit involved is turned ON.
CPU Bus Unit Setting Error Flag and Unit Number
Bit A40203 is turned ON when the CPU Bus Units actually installed differ from the Units registered in the I/O
table. The unit number of the CPU Bus Unit involved is written to word A427.
Bits A42700 through A42715 correspond to CPU Bus Units #0 through #15, respectively. When a error occurs,
the bit corresponding to the unit number of the CPU Bus Unit involved is turned ON.
CPU Bus Unit Error Flag and Unit Numbers
Bit A40207 is turned ON when a parity error occurs during the transmission of data between the CPU Unit and
CPU Bus Units. The unit number of the CPU Bus Unit involved is written to word A422.
Bits A42200 through A42215 correspond to CPU Bus Units #0 through #15, respectively. When a CPU Bus
Unit Error occurs, the bit corresponding to the unit number of the CPU Bus Unit involved is turned ON.
CPU Bus Unit Numbers
Bits A41000 through A41015 correspond to CPU Bus Units #0 through #15, respectively. When two CPU Bus
Units have the same unit number, the bits corresponding to the unit numbers of the CPU Bus Units involved are
turned ON.
Network Status Flags
Bits A50200 through A50207 are turned ON to indicate that ports #0 through #7, respectively, are enabled for
the SEND(192), RECV(193), and CMND(194). Bits A50208 through A50215 are turned ON to indicate that an
error has occurred in ports #0 through #7, respectively, during data communications using SEND(192),
RECV(193), or CMND(194).
A503 through A510 contain the completion codes for ports #0 through #7, respectively, following data commu-
nications using SEND(192), RECV(193), or CMND(194).
CIO Area: CPU Bus Unit Area
The CPU Bus Unit Area is allocated to CPU Bus Units according to the unit numbers assigned to them, as
shown below. Each Unit is allocated 25 words. The Controller Link Units use 22 of the words allocated to them.
Error Information: CIO 1500 + 25 x (Unit No.) (See page 254.)
318
Unit no. Words
0 1500 to 1524
1 1525 to 1549
2 1550 to 1574
3 1575 to 1599
4 1600 to 1624
5 1625 to 1649
6 1650 to 1674
7 1675 to 1699
Unit no. Words
8 1700 to 1724
9 1725 to 1749
10 1750 to 1774
11 1775 to 1799
12 1800 to 1824
13 1825 to 1849
14 1850 to 1874
15 1875 to 1899
1: Network parameter error (in PLC's EEPROM)
1: Data link table error (in PLC's EEPROM)
1: Routing table error (in PLC's EEPROM)
1: PLC system setting error
1: EEPROM error
1: Duplicate node address setting error
1: Inconsistent network parameters
1: Communications controller send error
1: Error log exists
Appendix A