Pinout

Pin		Definition		Remarks
1	2	U_SBUS	U_SBUS	S-Bus The power supply U_SBUS is powered by the coupler and by the power supply Us of the EtherCAT coupler.
3	4	GND	GND
5	6	RX0+	TX1+
7	8	RX0-	TX1-
9	10	GND	GND
11	12	TX0+	RX1+
13	14	TX0-	RX1-
15	16	GND	GND
17	18	AGND	AI 1	Signal
19	20	AGND	AI 2
21	22	AGND	AI 3
23	24	AGND	AI 4
25	26	AGND	AI 5
27	28	AGND	AI 6
29	30	AGND	AI 7
31	32	AGND	AI 8
33	34	NC	NC	UpThe device has no upper contacts and is powered solely via U_SBUS
35	36	NC	NC
37	38	NC	NC
39	40	SGND	SGND

Pin Definition

Definition	Description
U_SBUS	S-Bus power supply 3.3V
GND	S-Bus ground signal (Note: Never connect to 0V Up!)
RXn+	S-Bus receiving positive signal
RXn-	S-Bus receiving negative signal
TXn+	S-Bus transmitting positive signal
TXn-	S-Bus transmitting negative signal
AI 1~AI 8	Analog input 1...8
AGND	Analog input grounding
NC	Not Connected
SGND	Shield layer grounding

PDO Parameter Description

Name		Parameters	Data type	Description
Al Standard Channel 1~Al Standard Channel 8	Status	Underrange	Bit	Data is below the measurement range
		Overrange	Bit	Data is over the limit
		Limit 1	2Bit	Limit monitoring: 0：not active 1：Value < limit value 1 2：Value > limit value 1 3：Value = limit value 1
		Limit 2	2Bit	Limit monitoring: 0：not active 1：Value < limit value 1 2：Value > limit value 1 3：Value = limit value 1
		Error	Bit	0: No error 1: If data is invalid (over or below the measurement range)
		TxPDO State	Bit	Reserved parameter
		TxPDO Toggle	Bit	Reserved parameter
	Value	/	INT	Analog input address

COE Parameter Description

COE parameters 0x8000~0x8070 are used for parameter settings of the analog input module. The parameters marked with yellow “ ” are reserved and cannot be configured. Note: when n takes values from 0 to 7, it corresponds to channels 1 to 8 respectively.

0x80n0 AI parameter settings
Index	Name	Meaning	Symbol	Default Value
80n0:01	Enable user scale	Enable user scaling	RW	0x00
80n0:02	Presentation	Reserved parameter	RW	0x00
80n0:05	Siemens bits	Reserved parameter	RW	0x00
80n0:06	Enable filter	Enable filter. When the filter is enabled, noise can be filtered out without requiring synchronizing data exchange with the PLC cycle.	RW	0x01
80n0:07	Enable limit 1	Limit 1 is enabled	RW	0x00
80n0:08	Enable limit 2	Limit 2 is enabled	RW	0x00
80n0:0A	Enable user calibration	Reserved parameter	RW	0x00
80n0:0B	Enable vendor calibration	Reserved parameter	RW	0x01
80n0:0E	Swap limit bits	Reserved parameter	RW	0x00
80n0:11	User scale offset	User scaling offset	RW	0x0000
80n0:12	User scale gain	User scaling gain.The gain is expressed in fixed-point format with a factor of 216.Value 1 corresponds to 6553510 (0x00010000hex).And it is limited to the range of +/−0x7FFFF.	RW	0x00010000
80n0:13	Limit 1	Used to set the first limit value for status bits (valid when the index 80n0:07 is enabled)	RW	0x0000
80n0:14	Limit 2	Used to set the second limit value for status bits (valid when the index 80n0:08 is enabled)	RW	0x0000
80n0:15	Filter settings	Filter activation when enabled via Enable filter (index 80n0:06).Possible settings are numbered sequentially.0：50 Hz FIR1：60 Hz FIR	RW	0x0000
80n0:17	User calibration offset	Reserved parameter	RW	0x0000
80n0:18	User calibration gain	Reserved parameter	RW	0x4000

SC3248 | 8 Channel Analog Current Input Module