73
8. Specifications
Compatible Standards
Electromagnetic Compatibility
Emissions
Radiated Emission
EN61326-1/ EN 55011/CISPR 11
,
FCC Part15 Subpart B Class A
Conducted Emission
EN61326-1/ EN 55011/CISPR 11
FCC Part15 Subpart B Class A
Harmonics Measurement
EN61000-3-2
Flicker Meter Measurement
EN61000-3-3
Immunity
Electrostatic discharge Immunity
EN61326-1, EN IEC 61000-6-2/EN61000-4-2
Radio Frequency Electromagnetic field Immunity
EN61326-1, EN IEC 61000-6-2/EN61000-4-3
Electrical Fast Transient/Burst Immunity
EN61326-1, EN IEC 61000-6-2/EN61000-4-4
Surge Immunity
EN61326-1, EN IEC 61000-6-2/EN61000-4-5
Conducted Disturbances, Induced By Radio Frequency
Fields Immunity
EN61326-1, EN IEC 61000-6-2/EN61000-4-6
Power Frequency Magnetic Field Immunity
EN61326-1, EN IEC 61000-6-2/EN61000-4-8
Voltage Dips and Short Interruptions
EN61326-1, EN IEC 61000-6-2/EN61000-4-11
Safety
Europe
CE, as per EN61010-1: 2010
(
3
rd
Edition
)
U.S. and Canada
UL, cUL Recognized
as per UL61010-1: 2012
(
3
rd
Edition
)
IEC61010-1: 2010
(
3
rd
Edition
)
Installation Category
III
Measuring Category
III
Pollution Degree
2
MODBUS RTU Communication Specifications
Item
Specifications
Physical interface
RS-485 2wires half duplex
Protocol
RTU mode
Transfer method
Start-stop synchronization
Transmission wiring type
Multi-point bus (either directly on the trunk cable, forming a
daisy-chain)
Baud rate
2400, 4800, 9600, 19200, 38400 bps (Default is 19200 bps)
Data bit
8
Stop bit
1 or 2 (Default is 1)
Parity
ODD,EVEN or NONE (Default is EVEN)
Slave address
1 to 255 (FFh) (Default is 1, 0 is for broadcast mode)
(248 to 255 are reserved)
Distance
1200 m
Max. number
31
Response time
1 s or less (time to response after query data is received)
Terminate
120
Ω 1/2 W
Recommended cable
Shielded twisted pair cable, AWG 24 to 14
■
Read the following document as well as this user
’
s manual.
・
Electronic Multi-Measuring Instrument ME Series MODBUS Interface specifications (Ref. No. LSPM-0075)