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Allocated CIO Area Words Section 3-2
3-2-12 Normal Slave Table (Words n+20 to n+23)
This table indicates the slaves that are communicating normally with the mas-
ter. The bits correspond to node addresses. The bits for slaves for which nor-
mal I/O connections have been made are turned ON in this table. These are
not flags to show the remote I/O communications status.
In the following cases, the status of communications up to the most recent
status is saved and then status is cleared when communications are restarted
(i.e., when connection is made again).
• Communications power supply error
• Send timeout
• Remote I/O communications stopped
• When a communications error occurs with DIP switch pin 3 (remote I/O
communications stop/continue setting for communications errors) on the
front panel ON (stop)
This table is updated continuously.
3-2-13 C200H Master Replacement Master Status 1 (Word n+24)
To simplify changes to ladder programs for a C200H DeviceNet Master Unit
(C200HW-DRM21-V1), Master Replacement Status 1, which has the same bit
configuration as Master Status Area 1, is provided for C200H DeviceNet Mas-
ter Units.
Word n+24 [n = CIO 1,500 + (25 x unit number)]
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48
n+20
n+21
n+22
n+23
Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit09 Bit08 Bit07 Bit06 Bit05 Bit04 Bit03 Bit02 Bit01 Bit00
Bit Name Status Controlled
by
Unit operation
– Slave Nor-
mal Flags
ON Unit Indicates normal connection.
OFF Unit Indicates that not all connections have been made.
Bit Name Status Controlled
by
C200HW-
DRM21-V1
status
Details and CS1W-DRM21 status
00 Unit Memory
Error Flag
ON/OFF Unit Switch Set-
ting Error or
EEPROM
Error Flag
This is the same as a Unit memory error (word n+10, bit
04).
Note This bit is also used for incorrect switch settings
for the C200HW-DRM21-V1. The Unit will not start
if the switch settings are incorrect.
01 Node
Address
Duplicated/
Bus Off Flag
ON/OFF Unit Node
Address
Duplicated/
Bus Off Flag
This bit turns ON if any one of the following flags turns
ON:
• Node Address Duplicated Flag (word n+10, bit 06)
• Bus Off Flag (word n+10, bit 05)
02 Reserved by
system
--- --- Reserved by
system
Reserved by system