32
8. RS-485 INTeRfACe
Overview of the
PCE-
ND10 serial port
parameters.
•
identifier
0xCB
•
meter address
1..247
•
transmission speed 4.8, 9.6, 19.2, 38.4 kbit/s,
•
operation mode
Modbus RTu,
•
transmission mode 8N2, 8e1, 8O1, 8N1,
•
max. response time 750 ms.
•
max. no. of registers read
in a single query
- 40 4-byte registers,
- 80 2-byte registers,
•
implemented functions - 03, 04, 06,16, 17,
- 03, 04 register read,
- 06 1st register write,
- 16 register write,
- 17 device identification.
Manufacturer’s settings: address 1, speed 9.6 kbit/s, mode RTu 8N2.
PCE-
ND10 meter register map
PCE-
ND10 meter has data contained in 16-bit and 32-bit
registers. Process variables and meter parameters are placed
in the address area of registers in a way depended on
the variable value type. Bits in 16-bit registers are numbered
from the youngest to the oldest (b0-b15). 32-bit registers include
num-
bers of float type in IEEE-754 standard. Sequence of
3210 bytes –
the oldest is transmitted as the first.
Summary of Contents for PCE-ND10
Page 7: ...9 5 3 Connection diagrams OUT Direct measurement in a 4 wire network PCE ND10...
Page 8: ...10 OUTimp Semi indirect measurement in a 4 wire network PCE ND10...
Page 15: ...17 6 4 Operating modes Fig 6 PCE ND10 meter operating modes...
Page 24: ...26 Fig 8 Alarm types x alarm no a b normal c off d on a n on b n oFF c On d OFF...
