SM Instruments CTOD is driver to communicate with CTOD device of SM Instruments Corp., in Korea.
<Figure 1> is read setting example of SM Instruments CTOD communication driver.
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| <Figure 1> Read setting example of SM Instruments CTOD driver |
Device part of <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively, according to device.
Also, you can input End code value of protocol as number(0, ~ 255, Default = 4(EOT)) at Option part.
SM Instruments CTOD communication driver's read schedule
Read schedule setting parameters are as follows :
1) STATION – Input device number between 1 and 31.
2) Read Command – Enter READ or MONITOR.
3) Read Start Address – Don't care. (In case of READ command, fix the start address as 1)
4) Save start address for Communication Server – Saving start address of Communication Server.
5) Read Size - Number of data to read. (Always set as 1, refer to <Table 1>, in case of READ command, fixed to 9)
Read schedule example)
READ, 1, READ, 0, 0, 1,
<Table 1> and <Table 2> are read value save address and contents of SM Instruments CTOD communication driver's READ/MONITOR read command.
Save Address |
Save Contents |
Remarks |
Save addr + 0 |
Version information |
010h : Ver 1.00 011h : Ver 1.10 |
Save addr + 1 |
LED1 status |
Bit 0 ~ 2 : R/S/T phase Relay contact point LED, Bit 3 : Don't care, Bit 4 ~ 6 : R/S/T phase failure LED, Bit 7 : Don't care. |
Save addr + 2 |
LED2 status |
Bit 0 ~ 2 : R/S/T phase detection LED, Bit 3 : Don't care, Bit 4 : Failure integration contact point output display LED, Bit 5 : -(Input open detection contact point integration output display LED) Bit 6~7 : Don't care. |
Save addr + 3 |
Relay output status |
Bit 0 ~ 2 : R/S/T phase contact point output, Bit 3 : Don't care, Bit 4 : Failure integration contact point output, Bit 5 : Input open detection contact point integration output Bit 6~7 : Don't care. |
Save addr + 4 |
Motion detection voltage |
0 (30V), 1 (60V), 2 (90V), 3 (120V) |
Save addr + 5 |
Relay output delay time |
0 (1 sec), 1 (2 sec), 2 (3 sec), 3 (4 sec) |
Save addr + 6 |
Relay output MODE |
0 (Simultaneous output), 1(Each output) |
| <Table 1> Read value save address and contents of SM Instruments CTOD communication driver's READ command | ||
Save Addr |
Save Contents |
Remarks |
Save addr + 0 |
First monitoring data |
Value between 0 and 255 |
Save addr + 1 |
Second monitoring data |
Value between 0 and 255 |
| <Table 2> Read value save address and contents of SM Instruments CTOD communication driver's MONITOR command | ||
Read value of SM Instruments CTOD communication driver is saved at WORD/DWORD/FLOAT memory as same value(Only, save format is different).
If you click the icon 
in protocol
option part at <Figure 1>, you can see the dialog box such as <Figure 2>. You
can also set read schedule by using this part.
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| <Figure 2> Example of SM Instruments CTOD driver's Option dialog box |
, 
, 
button and
listbox of <Figure 2>.
Also, you can set End code value(0 ~ 255) of protocol at 'End Code Number' of <Figure 2>.
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| <Figure 3> SM Instruments CTOD driver's read schedule Add/Edit dialog box |
When you click Add button or Edit button in dialog box of <Figure 2>, dialog box of <Figure 3> is shown.
You can Test or Reset the device by using writing setting of SM Instruments CTOD communication driver.
Digital Write
Digital write and analog write have the same setting parameters except output value(0 or 1).
Analog Write
You can read/write, print the current value of card by using analog write.
Analog write setting parameters are as follows:
1) PORT Connected communication port number. (Not COM number)
2) STATION Input device number between 1 and 31.
3) ADDRESS Don't care.
4) Extra1 Input output command of TEST or RESET.
5) Extra2 Don't care.
Write example 1)
PORT : 0 STATION : 1 ADDRESS : 0000 EXTRA1 : TEST EXTRA2 : 0
If you set as above and write analog value, you can test no.1 SM Instruments CTOD device connected with no.0 port.
Write example 2)
PORT : 0 STATION : 1 ADDRESS : 0000 EXTRA1 : RESET EXTRA2 : 0
If you set as above and write analog value, you can reset no.1 SM Instruments CTOD device connected with no.0 port.
Connect communication cable and basic power of SM Instruments CTOD device, as follows.
Communication cable connection
Connect RS-485, +, - terminal of computer side to no.16(RS-485 + terminal), no.17(RS-485 - terminal) terminal of CTOD device, such as <Figure 4>.
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| <Figure 4> Appearance of connecting communication cable, basic power and etc to SM Instruments CTOD device |
Basic power connection
Connect 90~260V AC/DC basic power to no.20, no.21 terminal of CTOD device, such as <Figure 4>.