－
119
－
―
Instrument can be
connected low order side
―
1. BR
2. AL3000
3. AH3000
4. SE3000
5. KE3000
6. LE5000
7. KR2000/3000
8. LT230
9. LT350/370
10. LT450/470
11. LT830
12. DB1000/2000
13. DP-G
14. JU
15. JW
16. MELSEC series *
4
17. SYSMAC series *
5
16.
Low order communications (read) (option)
16.1 Outline
*When use low order communications, set communications type to [Low order (read)] (Refer to 13.11.7).
Low order communications are functions that this recorder works as a master unit (high order
instrument) communications and reading data of the other instruments which are connected as slave
units (low order instruments) assigned for input channel of this recorder and then displaying and
recording the data. This recorder and low order instruments communicate by serial communication of
RS-485 communication standard compliance.
The “range”, “scale”, “RJ”, and “burn out” settings can be set for lower order instrument.*1
Data requirement for each instrument is approximately 1 second (all points per 1 instrument). When
connect 5 instruments to low order side, data renewal period is approximately 5 seconds.*3
*1 LT230, LT350/370, LT830, JU, JW has only data collective function,
not setting.
*2 Data renewal time is different depending on regulated points only JW.
Less than 10 points: number of connection lower-order communication
instrument x 1 (second)
10-13 points: number of connection lower-order communication
instrument x 2 (seconds)
More than 13 points: number of connection lower-order communication
instrument x 3 (seconds)
*3 Except JW
*4 Data of following PLC made of Mitsubishi Electric can be read.
・
MELSEC
AnACPU series
・
MELSEC
QnACPU series
・
MELSEC
QnASCPU series
・
MELSEC
QCPU series
・
MELSEC
FX series
Need the communication unit etc. that is corresponded
communication control procedure model 4.
Following devices can be imported.
・
D0000 to D1023
・
M0000 to M2047
※
It is necessary to change the setting of MELSEC to being checksum.
*5 The data of PLC made of Omron can be read.
・
The instrument which is corresponded SYSMAC C mode command communication.
Following channels can be inputted.
・
Data memory (DM) area: D0000 to D9999
・
CIO (input and output relay etc.) area: 0 to 6143
When PLC of Omron communicate with RS-485, need line convertors (SC8-10) same as the
number of PLC (refer to 5-7(6)(7)). When communicate with RS-422A, need communication unit
that is corresponded high order link C mode command.
■
Lower-order communication (read) outline
・
Model:KR31
□□－
S
□□
・
Connection quantity: Maximum 16
・
Maximum reading points*: 120 to analog input points
*Possible to register on channel which has not input in the recorder.
・
Data renewal period: approximately 1 second per 1 instrument.*
* Display of renewal may delay in this instrument depending on the condition of data renewal or
communication response delay of low order side instrument.
・
Communication time out: approximately 1 second for each instrument* (no retry). Retain the data of
last value.
*When communication time out is occur for the 60th times in a row, display and record “UNDER”.
16
