Omron CQM1H - PROGRAM User Manual

49
Communications Functions Section 1-6
Communications Settings
(DM 6645 and DM 6650)
The settings in DM 6645 and DM 6650 determine the main communications
parameters, as shown in the following diagram.
Communications Settings
(DM 6646 and DM 6651)
When pin 5 of the CPU Unit’s DIP Switch is OFF and the settings in DM 6646
(or DM 6651) are enabled in DM 6645 (or DM 6650), these settings determine
the transmission frame format and baud rate, as shown in the following dia-
gram.
Communications mode
0: Host Link
1: No-protocol
2: One-to-one data link slave*
3: One-to-one data link master*
4: NT Link in 1:1 mode*
15 0
Bit
DM 6645: RS-232C port
DM 6650: Peripheral port
Link words for 1:1 data link*
0: LR 00 to LR 63
1: LR 00 to LR 31
2: LR 00 to LR 15
Port settings
0: Standard communication conditions
1: According to setting in DM 6646, DM 6651
Default (0000): Host Link using standard parameters, no CTS control
Note *These settings can be made for the RS-232C port (DM 6645), but
not for the peripheral port (DM 6650).
CTS control settings
0: Disabled
1: Enabled
Transmission Frame Format (See table below.)
Baud rate (See table below.)
Default: Standard communication conditions.
15 0
Bit
DM 6646: RS-232C port
DM 6651: Peripheral port

Omron CQM1H - PROGRAM Specifications

General

I/O Capacity	Up to 512 points
Power Supply	100 to 240 VAC, 50/60 Hz or 24 VDC (depending on model)
Instruction Set	Basic and advanced instructions
Operating Temperature	0 to 55°C
Program Capacity	7.2K to 15.2K steps
Communication Ports	RS-232C
Expansion Slots	Up to 3 expansion units
Type	Programmable Logic Controller (PLC)
CPU Type	RISC
Program Memory	7.2K to 15.2K steps
I/O Points	512 max
Expansion Capability	Up to 3 expansion units
Data Memory	RAM (battery backup)