semaphore TBOX LT2-530 Series, Руководство пользователя, Страница: 138 / 197

Version : 1.09 138
External Source. All the following parameters concern the Slave station:
Device: select an existing external device from the ‘Resources’. You can create one clicking the
button
Type: select the type of the external variable. The choices are:
With external source ‘ModBus device’ (any TB
OX
MS , TB
OX
LT, , any ModBus device)
Types Connection in remote device ModBus Function
Digital input Only digital input(s) 2
Coil Digital output(s) or register(s) 1, 5 or 15
Analog input Only analog input(s) 4
Holding register Analog output(s) or register(s) 3, 6 or 16
Operations Types ModBus Functions Max. Quantity
(*)
Read Digital Digital Input 2 1600 (see Warning below)
Read Digital Coil 1 1600 (see Warning below)
Read Analog Analog Input 4 125 (16 bits) - 62 (32 bits)
Read Analog Holding Register 3 125 (16 bits) - 62 (32 bits)
Write Single Digital Coil 5 1
Write Single Analog Holding Register 6 1 (word)
Write Multiple Digital Coil 15 800 (see Warning below)
Write Multiple Analog Holding Register 16 100 (16 bits) - 50 (32 bits)
(*): Maximum quantities for
TB
OX
LT2 , TB
OX
LITE , TB
OX
MS
. You also have to check the maximum quantities of the
‘Remote device’-they could be less.
With External source ‘Remote TBox’ (
TB
OX
CPU-3
)
Description Operations Tag types Max. Quantity
Digital I/O Read/Write IOD, T4m 16
Analog I/O Read/Write IOW, I4M 8
Digital registers Read/Write DIR, STD 1600 (see Warning below)
Analog registers (8 bits) Read/Write STB 8
Analog registers (16 bits) Read/Write AIR, STO 100
Analog registers (32 bits) Read/Write TOT
8
Analog registers (32 bits) Read/Write FLT 8
Timers Read/Write ATP, ATV, DTI 16
Counters Read/Write ACP, ACV, DCN 16
Special Registers Read/Write DSPE, ASPE 16
Register ‘Sampling Table’ Read/Write ECH 16
(*): with quantity > 16, ModBus addresses and quantities must be multiple of 8
When accessing digital variables (DIV, DIR, …) into
TB
OX
CPU-3
, make sure you use
multiples of 8 for: quantity and address of Variable in External Source
Address :
The ModBus address must be typed according to the indication of the user’s guide of the
Remote device. Communicating to a
TB
OX
, you have to refer to the TWinSoft application
and its configuration of Tags.