Function 16 writing n consecutive words | APC 6000 specs

JBUS protocol (continued)

Function 16: writing n consecutive words

request

slave address

10

address of

number

number

data bytes

CRC 16

(*)

first word

of words

of bytes N

1 byte

1 byte

2 bytes

2 bytes

1 byte

n bytes

2 bytes

2 X 123

4 N 246

MSB LSB MSB LSB MSB

MSB LSB

first word

last word

response

slave address

10

(*)

address of first word

number of words written

CRC 16

1 byte

1 byte

2 bytes

2 bytes

2 bytes

Note: if the slave address is 0, all units execute the write command without sending a response

example

Writing words 00 and 01 of slave at address 20 (synchronization counter)

(00)= 0000

(01)= 0000

request
20	10	0000	0002	04 0000 0000 0000 0000 5C 93
20	(*)	0000	0002	04 0000 0000 0000 0000 5C 93
response
20	10	0000	0002	47 79
	(*)

)

*

(

6739389EN/FB - Page 13

Image 13

APC 6000 user manual Function 16 writing n consecutive words, Msb Lsb Msb Lsb Msb

Contents

GTC link communication interface Mgetm GalaxyTM 2 6739389EN/FB Contents Introduction PresentationACQ module COM module Interface Communication settings Jbus protocol Synchronizing data exchanges PrincipleDescription of request and response frames Checking received messages on the slave side Function 1 and 2 read N bits Functions Function 5 writing a bit Function 3 and 4 read N words Function 6 writing a word Function 8 reading error diagnosis counters Function 15 writing n consecutive bits Function 11 reading event counters MSB LSB MSB LSB MSB Function 16 writing n consecutive words CRC 16 algorithm Example of CRC computation Table of Most Significant Bytes for CRC16 Computation Example of CRC 16 computation in C using table lookup Jbus protocol Unitary UPS UPS theory of operation Operation without battery Parallel connected UPS with Static Switch cubicleUPS without Mains Operation with battery Unitary UPS Block diagramMeasured quantities Main status bits UPS operating information Normal operation Load on batteryOperating modes Load on Mains Load on bypass Parallel connected UPS Main status bits of system operations Normal operation Load on battery Disconnected Static Switch cubicle Main indicators of system operations Static SwitchNormal operation Load on Mains Load on bypass Sample commands List of variable fields Example of read data array commands sent by the terminalSystem information Message format Tables of measured data General definitions Signaling fieldCurrent fields Voltage fields Power fields Frequency fields Tables of binary data Battery and adjustments fieldsRectifier-charger Connectivity Inverter Global information Table of control devices Word address Glossary of information descriptors Inverter stack overload 0=no/1=overload Word address 4C Word address 4A Word address 4E summary Word address 4D Word address C1 C10 call reset 0= not activated / 1=activated