20-4 20. Hitachi Industrial Equipment Systems
Special internal output: WRF037
* If the setting is undefined upon power-up, the default setting (transmission control protocol 1, without port, RS-232C) is applied.
PORT2
PORT2 settings are defined as “dedicated port, RS-232C, transmission control protocol 1, 7 bits, 1 bit, even”, regardless of the
CPU model.
Mode setting switch, PHL switch
Device Memory Setting
WRF037
Setting example
SW6 PHL Switch Baud Rate Remarks
OFF OFF (Low) 4800 bps
PHL signal (pin 4 at PORT2) Low
ON OFF (Low) 9600 bps
OFF ON (High) 19200 bps
PHL signal (pin 4 at PORT2) High
ON ON (High) 38400 bps
15 14 13 12 11 10 9 8 7 0
a b c d e f g h Station number 00 to 31 (BCD)
Communication interface setting (to be set by user)
g h Interface
0 0 RS-232C
0 1 RS-422
1 0 RS-485
1 1 Not to be changed
Communication interface status display
(to be set by system)
e f Interface
0 0 RS-232C
0 1 RS-422
1 0 RS-485
11 -
Built-in terminating
resistance
0: None
1: Provided
Station number
0: Without station
number
1: With station
number
Transmission control protocol
0: Transmission control protocol 1
1: Transmission control protocol 2
Bit setting 1: Set (when setting has been completed, the system sets this value to “0”.)
Inside the parentheses ( ) shows cases where the terminating resistance is provided.
User Setting
After Turning the
Power Back ON
Signal Level
Communication Control
Protocol
H8000 H0000
RS-232C
Transmission control
protocol 1
HC000 H4000
Transmission control
protocol 2
H8100 (H9100) H0500 (H1500)
RS-422
Transmission control
protocol 1
HC100 (HD100) H4500 (H5500)
Transmission control
protocol 2
HA1** (HB1**) H25** (H35**)
Transmission control
protocol 1 with port
HE1** (HF1**) H65** (H75**)
Transmission control
protocol 2 with port
HA2** (HB2**) H2A** (H3A**)
RS-485
Transmission control
protocol 1 with port
HE2** (HF2**) H6A** (H7A**)
Transmission control
protocol 2 with port