IDEC OpenNet series User Manual

6: ALLOCATION NUMBERS
6-6 OPENNET CONTROLLER USER’S MANUAL
Special Internal Relay Allocation Numbers
Special internal relays M8000 through M8117 are read/write internal relays used for controlling the CPU operation and
communication. Special internal relays M8120 through M8237 are read-only internal relays primarily used for indicating
the CPU statuses. All special internal relays cannot be used as destinations of advanced instructions.
Special Internal Relays (Read/Write)
Allocation
Number
Description CPU Stopped Power OFF
M8000 Start Control Maintained Maintained
M8001 1-sec Clock Reset Cleared Cleared
M8002 All Outputs OFF Cleared Cleared
M8003 Carry (Cy) or Borrow (Bw) Cleared Cleared
M8004 User Program Execution Error Cleared Cleared
M8005 Data Link Communication Error Maintained Cleared
M8006 Data Link Communication Prohibit Flag (Master Station) Maintained Maintained
M8007
Data Link Communication Initialize Flag (Master Station)
Data Link Communication Stop Flag (Slave Station)
Cleared Cleared
M8010 High-speed Counter Comparison Output Reset Cleared Cleared
M8011 Maintain Outputs While CPU Stopped Maintained Cleared
M8012 SFR(N) Shifting Flag Maintained Maintained
M8013 — Reserved ———
M8014 Write Communication Command Execution at Receive Completion Maintained Maintained
M8015-M8017 — Reserved ———
M8020 Calendar/Clock Data Write Flag Maintained Cleared
M8021 Clock Data Adjust Flag Maintained Cleared
M8022 User Communication Receive Instruction Cancel Flag (RS232C Port 1) Cleared Cleared
M8023 User Communication Receive Instruction Cancel Flag (RS232C Port 2) Cleared Cleared
M8024-M8027 — Reserved ———
M8030 INTERBUS Master Initialize Maintained Cleared
M8031-M8035 — Reserved ———
M8036 INTERBUS Master Bus NG (read only) Maintained Cleared
M8037 INTERBUS Master Peripheral Fault (read only) Maintained Cleared
M8040 INTERBUS Master Error (read only) Cleared Cleared
M8041 INTERBUS Master Error (read only) Cleared Cleared
M8042-M8047 — Reserved ———
M8050 RS232C Port 1 Modem Mode (Originate): Initialization String Start Maintained Maintained
M8051 RS232C Port 1 Modem Mode (Originate): ATZ Start Maintained Maintained
M8052 RS232C Port 1 Modem Mode (Originate): Dialing Start Maintained Maintained
M8053 RS232C Port 1 Modem Mode (Disconnect): Disconnect Line Start Maintained Maintained
M8054 RS232C Port 1 Modem Mode (General Command): AT Command Start Maintained Maintained
M8055 RS232C Port 1 Modem Mode (Answer): Initialization String Start Maintained Maintained
M8056 RS232C Port 1 Modem Mode (Answer): ATZ Start Maintained Maintained
M8057 RS232C Port 1 Modem Mode AT Command Execution Maintained Cleared
M8060 RS232C Port 1 Modem Mode (Originate): Initialization String Completion Maintained Cleared
M8061 RS232C Port 1 Modem Mode (Originate): ATZ Completion Maintained Cleared
M8062 RS232C Port 1 Modem Mode (Originate): Dialing Completion Maintained Cleared
M8063 RS232C Port 1 Modem Mode (Disconnect): Disconnect Line Completion Maintained Cleared
M8064 RS232C Port 1 Modem Mode (General Command): AT Command Completion Maintained Cleared
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IDEC OpenNet series Specifications

General

Brand	IDEC
Model	OpenNet series
Category	Controller
Language	English