
CR
#
RS-485
parameter
address
Latched Register content b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
#25 H’40E1 ○ R/W Adjusted GAIN value of CH2 When voltage input, range: K-800 ~ K4,000.
When current input, range: K-800 ~ K2,600.
Note: When CR#1 is modified, adjusted Gain value returns to
default.
#26 H’40E2 ○ R/W Adjusted GAIN value of CH3
#27 H’40E3 ○ R/W Adjusted GAIN value of CH4
Note: GAIN value - OFFSET value = +200LSB ~ +3,000 LSB (voltage) or +200 LSB ~ +1,600 LSB (current).
When GAIN - OFFSET is small (steep oblique), the resolution of input signal will be finer and variation on the digital value
will be greater. When GAIN - OFFSET is big (gradual oblique), the resolution of input signal will be rougher and variation
on the digital value will be smaller.
#28 H’40E4 ○ R/W Adjusted GAIN value of CH5 GAIN settings at CH5 ~ CH6. Range: K0 ~ K4,000.
Default = K2,000; Unit: LSB.
#29 H’40E5 ○ R/W Adjusted GAIN value of CH6
Note: GAIN value - OFFSET value = +400 LSB ~ +6,000 LSB (voltage or current).
When GAIN - OFFSET is small (steep oblique), the resolution of output signal will be finer and variation on the digital
value will be greater. When GAIN - OFFSET is big (gradual oblique), the resolution of output signal will be rougher and
variation on the digital value will be smaller.
#30 H’40E6 ╳R Error status Registerforstoringallerrorstatus.
See the table of error status for more information.
CR#30: Error status value (see the table below)
Error status Content b15 ~ b8 b7 b6 b5 b4 b3 b2 b1 b0
Abnormal power supply K1 (H’1)
Reserved
0 0 0 0 0 0 0 1
Incorrect analog input value K2 (H’2) 0 0 0 0 0 0 1 0
OFFSET/GAIN error K8 (H’8) 0 0 0 0 1 0 0 0
Memory self-test fail K16 (H’10) 0 0 0 1 0 0 0 0
Note: Each error status is determined by the corresponding bit (b0 ~ b7) and there may be more than 2 errors occurring at the
same time. 0 = normal; 1 = error.
Example: If the digital input exceeds 4,000, error (K2) will occur.
#31 H’40E7 ○ R/W Communication address For setting RS-485 communication address.
Range: 01 ~ 254. Default = K1.
#32 H’40E8 ○ R/W Communication format
6 communication speeds: 4,800 bps /9,600 bps /19,200 bps /
38,400 bps /57,600 bps /115,200 bps. Data formats include:
ASCII: 7, E, 1/ 7,O,1 / 8,E,1 / 8,O,1 / 8,N,1 / 7,E,2 / 7,O,2 /
7,N,2 / 8,E,2 / 8,O,2 / 8,N,2
RTU: 8, E, 1 / 8,O,1 / 8,N,1 / 8,E,2 / 8,O,2 / 8,N,2
Default: ASCII,9600,7,E,1(CR#32=H‘0002)
Please refer to✽CR#32 at the bottom of the page for more
details.
#33 H’40E9 ○ R/W
Returning to default;
OFFSET/GAIN tuning
authorization
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
CH6 CH5 CH4 CH3 CH2 CH1
Default = H’0000. Take the setting of CH1 ~ CH4 for example:
1. When b0 = 0, the user is allowed to tune CR#18 (OFFSET)
and CR#24 (GAIN) of CH1. When b0 = 1, the user is not
allowed to tune CR#18 (OFFSET) and CR#24 (GAIN) of
CH1.
2. b1 represents whether the OFFSET/GAIN tuning registers
are latched. b1 = 0 (default, latched); b1 = 1 (non-latched).
3. When b2 = 1, all settings will return to default values.
Take the setting of CH5 for the settings of CH5 ~ CH6:
When b13 and b12 =
00: adjustable, latched; 01: adjustable, non-latched
10: not adjustable; 11: returning to default setting and reset
b13 and b12 as 0.
CR#33: For authorizations on some internal functions, e.g. OFFSET/GAIN tuning. The latched function will store the
output setting in the internal memory before the power is cut off.
#34 H’40EA ○ R Firmware version Displaying the current firmware version in hex; e.g. version
1.0A is indicated as H’010A.
#35 ~ #48 For system use
Symbols: ○: Latched (when written in through RS-485 communication). ╳: Non-latched.
R: Able to read data by FROM instruction, W: Able to write data by TO instruction or RS-485 communication.
LSB (Least Significant Bit): For voltage input: 1LSB = 10V/2,000 = 5mV. For current input: 1LSB = 20mA/1,000 = 20μA.
For voltage output: 1LSB = 10V/4,000 = 2.5mV. For current input: 1LSB = 20mA/4,000 = 50μA.
✽Reset Module (Firmware V4.06 or above): Having connected the external power 24V, write the reset code H’4352 in
CR#0, then disconnect and reboot to complete the setup.
✽CR#32 Communication Format Setting: