ICP DAS USA I-7021, User Manual

Page: 163 / 187

I-7021/22/24, M-7022/24/28 User Manual, Rev: B2.3 163
Address Description Attribute
40488 Modbus response delay time in ms,
valid range: 0 ~ 30 R/W
40489 Host watchdog timeout value, 0 ~ 255,
in 0.1s R/W
40492 Host watchdog timeout count, write 0
to clear R/W
00257 Protocol, 0: DCON, 1: Modbus RTU R/W
00258 Modbus Protocol, 0:RTU. 1:ASCII R/W
00260 Modbus host watchdog mode
0: same as I-7000
1: can use AO and DO command to
clear host watchdog timeout status R/W
00261 1: enable, 0: disable host watchdog R/W
00269 Modbus data format, 0: hex, 1:
engineering R/W
00270 Host watch dog timeout status, write 1
to clear host watch dog timeout status R/W
00273 Reset status, 1: first read after
powered on, 0: not the first read after
powered on R
Output Types
Type Code Output Range Data Format Max Min
0 0 ~ 20 mA
Engineering 20000 0
Hexadecimal 0FFFh 0000h
1 4 ~ 20 mA
Engineering 20000 4000
Hexadecimal 0FFFh 0000h
2 0 ~ 10 V
Engineering 10000 0
Hexadecimal 0FFFh 0000h
4 0 ~ 5 V
Engineering 5000 0
Hexadecimal 0FFFh 0000h
Notes: Engineering data format and type code 4 are supported by
firmware version B102 and later.