<Figure 1> Read setting example of RKC REX-G9 F400~F900 communication driver
RKC REX-G9 F400~F900 communication driver is the driver to communicate with REX G9, F400, F700, F900 digital controller of RKC Instrument Corp., in Japan.
<Figure 1> is read setting example of RKC REX-G9 F400~F900 communication driver.
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<Figure 1> Read setting example of RKC REX-G9 F400~F900 communication driver |
Device part of <Figure 1> input Device type(COM1), Com Baud(9600), Parity Bit(0), Data Bit(8), Stop Bit(1), respectively, according to controller settings.
RKC REX-G9 F400~F900 communication driver's read schedule
Read schedule setting parameters are as follows:
1) STATION – STATION number of controller(00~99).
2) Read command – Input memory type. Refer to <Table 1> or REX series manual.
3) Read start address – Don't care.
4) Save Start Address for Communication Server – Readed data saving start address of communication server.
5) Read Size – Fixed to 1.
Read size of each memory area for REX series is fixed according to system setting.
Read schedule example)
| READ | STATION | Read Type | Read Start Address | Memory Save Address | Read
Size (Fixed to 1) |
| READ, | 1, | M1 | 0, | 0, | 1 |
| READ, | 1, | RA | 0, | 1, | 1 |
| READ, | 1, | SR | 0, | 2, | 1 |
| READ, | 1, | ZA | 0, | 3, | 1 |
| FLOAT, | 1, | S1, | 0, | 0, | 1, |
| FLOAT, | 1, | P1, | 0, | 1, | 1, |
| FLOAT, | 1, | I1, | 0, | 2, | 1, |
| FLOAT, | 1, | D1, | 0, | 3, | 1, |
| FLOAT, | 1, | CA, | 0, | 4, | 1, |
<Table 1> is part of memory area possible to use at RKC REX series protocol.
Area |
Data Type |
Remarks |
M1 |
Measured Value : PV |
Read only |
AA, AB, AC |
Alarm 1, 2, 3 status |
0:OFF, 1:ON, Read only |
B1,B2 |
Burnout 1, 2 |
0:OFF, 1:ON, Read only |
SR |
RUN/STOP function |
0:OFF, 1:ON, Read/Write |
S1 |
Set value(SV) |
Set value(SV), Read/Write |
A1, A2, A3 |
Alarm 1, 2, 3 setting |
Read/Write |
P1 |
Heat-side proportional band |
Read/Write |
I1 |
Integral time |
1~3600 sec(0:PD control), Read/Write |
D1 |
Derivative time |
1~3600 sec(0:PI control), Read/Write |
| <Table 1> Part of memory area possible to use at RKC REX series protocol (Refer to manual offered at RKC for detailed area type) | ||
Write to direct address of controller, regardless of SCAN File.
Digital and analog output of RKC REX series only can be sent at Computer mode(remote).
In other words, it can be operated when status of RA(Read only : Possible to only control at panel) command is '1' only.
Digital Write
Digital write setting parameters are as follows :
1) PORT Connected PORT number(0 ~ 255)
2) Station Station number 00 ~ 99.
3) ADDRESS Channel/Memory number
Units digit : Channel number - 1 ~ F
Tens digit : Output memory number – 0 – Current set memory, 1 ~ 8 (Memory K1 ~ K8 of parameter setting area : S1, A1, A2, A3, P1, I1, D1 area etc)
4) Extra1 Memory area Refer to <Table 1> or REX series manual.
5) Extra2 Digital classification Input 1 to digital output memory.
Write example 1)
Port:0, Station:1, Address:0000, Extra1:SR, Extra2:0
The setting parameter shown above is digital write of example for RUN/STOP RKC REX series controller.
Write example 2)
Port:0, Station:1, Address:0000, Extra1:J1, Extra2:0
The setting parameter shown above is digital write example for changing Auto/Manual status of RKC REX series controller.
Analog Write
Analog write setting parameters are as follows :
1) PORT Connected PORT number(0 ~ 255)
2) Station Station number 00 ~ 99.
3) ADDRESS Memory number
Output memory number – 0 – Current set memory, 1 ~ 8 (Memory K1 ~ K8 of parameter setting area : S1, A1, A2, A3, P1, I1, D1, CA area etc)
4) Extra1 Memory area Refer to <Table 1> or REX series manual.
5) Extra2 All and decimal point digits
Units digit : 0 = Memory without decimal point(AA, AB etc), 1 = Memory for 1 digit of decimal point.(P1, PB etc).
Tens digit : 1 = Memory which outputs as 1 digit, 0 = Memory which outputs as 7 digits(S1, P1, P2 etc).
Write example 1)
Port:0, Station:1, Address:0003, Extra1:S1, Extra2:1
The setting parameter shown above is analog write example for setting 3 memory SV(set value) RKC REX controller.
Write example 2)
Port:0, Station:1, Address:0000, Extra1:I1, Extra2:0
The setting parameter shown above is analog write example for setting Integral time of current channel RKC REX controller.