Dm (Data Memory) Area; Network Parameter Flags; Link Unit Mounted Flags; Cpu-Mounting Device Flag - Omron SYSMAC C2000H Operation Manual

DM Area
3-5-8

Network Parameter Flags

3-5-9

Link Unit Mounted Flags

Name
PC Link Unit Level 1 Mounted Flag
PC Link Unit Level 0 Mounted Flag
SYSMAC NET Link Unit Mounted Flag
Rack-mounting Host Link Unit
3-5-10

CPU-mounting Device Flag

3-5-11

FALS-generating Address

3-5-12

Cycle Time Indicators

3-6

DM (Data Memory) Area

36
Change 1 operation from the Programming Console. (Refer to 7-6-3 Hex/
BCD Data Modification for details.) The Power-Off Counter is refreshed every
time power is turned on.
AR 2406 is ON when the actual setting of the network parameter for operat-
ing level 1 of the SYSMAC LINK System differs from the setting at the FIT.
AR 2407 is ON when the actual setting of the network parameter for operat-
ing level 0 of the SYSMAC LINK System differs from the setting at the FIT.
The following flags indicate when the specified Link Units are mounted to the
Racks. (Refer to 3-5-7 CPU-mounting Device Flag for CPU-mounting Host
Link Units.) These flags are refreshed every cycle.
Bit
AR 2411 PC Link Unit in operating level 1
AR 2412 PC Link Unit in operating level 0 or in Single-level System
AR 2413 SYSMAC NET Link Unit
AR 2414 Rack-mounting Host Link Unit
AR 2415 turns ON when any device is mounted directly to the CPU. This in-
cludes CPU-mounting Host Link Units, Programming Consoles, and Interface
Units. This flag is refreshed every cycle.
AR 2400 to AR 2403 and AR 25 contain the address generating a user-pro-
grammed FALS code or a system FALS code 9F (cycle time error). The ad-
dress is in 5-digit BCD with the leftmost digit given in AR 2400 to AR 2403
and the rightmost four digits given in AR 25. FALS codes are described in
5-22-1 Failure Alarm – FAL(06) and Severe Failure Alarm – FALS(07). The
address is refreshed every cycle when an FALS code has been generated.
AR 26 contains the maximum cycle time that has occurred since program
execution was begun. AR 27 contains the present cycle time.
These times are recorded in 4-digit BCD to tenths of a millisecond (000.0 ms
to 999.9 ms) and are refreshed every cycle.
15 to 12
2 1
10 10
The DM area is used for internal data storage and manipulation and is acces-
sible only by word. Addresses range from DM 0000 through DM 4095 for the
C1000H; from DM 0000 through DM 6655 for the C2000H.
Although composed of 16 bits just like any other word in memory, DM words
cannot be specified by bit for use in instructions with bit-size operands, such
Link Unit
Bits
11 to 08 07 to 04
0
10
Section 3-6
03 to 00
–1
10